By EngNet Engineering Network

The 90-70 PLCs offer engineers more cost effective answers to their automation requirements with more computing power, more memory capabilities, and an exhaustive list of communications and redundancy options. The Series offers a range of Input/Output modules that make it highly adaptable and customizable for virtually any application. Here are the features that make the Series 90-70 PLCs the choice of many engineers:

• The highly popular and flexible VME-bus standard is the basis for the Series 90-70 open architecture platform.
• The Series 90-70 can be configured to integrate redundancy features for critical applications when combined with Genius Input/Output – Genius Modular Redundancy (GMR) systems and Hot Standby systems.
• An impressive variety of communications options are available, such as Ethernet TCP/IP, reflective memory, Genius LAN, and a wide choice of serial communications modules.

In spite of its great flexibility and nearly unlimited capabilities, the Series 90-70 system is relatively easy for an engineer to create. The Series 90-70 consists of a few basic components that can be chosen to create the perfect PLC system for most manufacturing requirements. Following are the basic system components with some helpful tips on choosing the correct ones for your particular application.

• Series 90-70 CPU Racks
• Series 90-70 Power Supplies
• Series 90-70 CPUs
• Series 90-70 Digital Input/Output Modules
• Series 90-70 Communications and Specialty Modules

The GE Fanuc Series 90-70 PLC System – Offering the versatility and expansion capability required by the modern manufacturing environment, the Series 90-70 is the option engineers rely on to create sophisticated, state-of-the-art PLC systems to handle the most demanding requirements. The 90-70 offers cost-effective PLCs that are operating in factories around the world. Today's automated manufacturing environment requires the prudent engineer to select the absolute best in PLCs – the GE Fanuc Series 90-70!

GE Fanuc Series 90-70 CPU Racks

Rack - The Series 90-70 has a variety of racks available capable of meeting the needs of all applications. The engineer will choose the racks based upon his overall system configuration. Racks are available in both front and rear mount designs. There are several choices to be made, including 5 and 9 slot standard racks, 9 slot redundant racks, and even 17 slot VME Integrator racks. The racks are used for mounting CPUs, both local and remote Input/Output Modules, and power supplies. With compatible accessories any of these racks can be used as an expansion rack. It is also possible for two separate racks to run off of one power supply. The following table aids in comparing the various rack options. All of the racks have a power supply slot in addition to the slots listed in the table.

PART NUMBER	DESCRIPTION	SLOTS	MOUNT TYPE	MODULE OPTIONS	SLOT SIZE	POWER SUPPLY	DIMENSIONS
IC697CHS750	STANDARD	5 DOUBLE	REAR (PANEL)	IC697 PLC	1.6”	DC - 1C 697  AC - PLUG	11.15” x 12.6” x 7.5”
IC697CHS770	REDUNDANT	6 DOUBLE	REAR (PANEL)	IC697 PLC IC687 (VME) I/O & COMM.	1.6”	EXTERNAL AC/DC – PLUG DC – 1C697	11.15” x 19.00” x 7.5”
IC697CHS771	REDUNDANT	6 DOUBLE	FRONT (RACK)	IC697 PLC IC687 (VME) I/O & COMM.	1.6”	EXTERNAL AC/DC – PLUG DC – 1C697	11.15” x 19.00” x 7.5”
IC697CHS790	STANDARD	9 DOUBLE	REAR (PANEL)	IC697 PLC	1.6”	DC – IC697 AC - PLUG	11.15” x 19.00” x 7.5”
IC697CHS791	STANDARD	9 DOUBLE	FRONT (RACK)	IC697 PLC	1.6”	DC – IC697 AC - PLUG	11.15” x 19.00” x 7.5”
IC697CHS782	VME INTEGRATOR	17 SINGLE 8 DOUBLE	REAR (PANEL)	IC697 PLC 3RD PARTY VME .8” WIDTH	.8”	EXTERNAL AC/DC – PLUG DC – 1C697	11.15” x 19.00” x 7.5”
IC697CHS783	VME INTEGRATOR	17 SINGLE 8 DOUBLE	FRONT (RACK)	IC697 PLC 3RD PARTY VME .8” WIDTH	.8”	EXTERNAL AC/DC – PLUG DC – 1C697	11.15” x 19.00” x 7.5”

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GE Fanuc Series 90-70 Power Supplies

Power Supplies – In the Series 90-70 system, Power Supply Modules simply slide into the PLC rack the same as I/O Modules. The Power Supplies come with a variety of voltage and current options for powering any size system. They also feature built-in over current and over voltage protection. As noted above, it is possible to configure a system in which 1 Power Supply can operate 2 racks. The following table compares the various Power Supplies available.

PART NUMBER	LOAD CAPACITY	NOMINAL INPUT	OUTPUT CAPACITIES VOLTAGE/POWER
IC697PWR710	55 WATTS	120/240 VAC or 125 VDC	5 VDC @ 11 AMPS	5 VDC @ 11 AMPS	5 VDC @ 11 AMPS
IC697PWR711	100 WATTS	120/240 VAC or 125 VDC	-12 VDC @ 1 AMP	+ 12 VDC @ 2 AMPS	5 VDC @ 20 AMPS
IC697PWR724	90 WATTS	24 VDC	- 12 VDC @ 1 AMP	+ 12 VDC @ 1.5 AMPS	5VDC @ 18 AMPS
IC697PWR748	90 WATTS	48 VDC	- 12 VDC @ 1 AMP	+ 12 VDC @ 1.5 AMPS	5 VDC @ 18 AMPS

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GE Fanuc Series 90-70 CPUs

CPU – The heart and brains of any PLC system is the CPU. All PLCs require a CPU to function. In the Series 90-70 the CPU is modular and mounts right into the system rack. To properly configure a Series 90-70 system the engineer must survey the requirements and the intended results he expects from the PLC system he creates. Choosing the proper CPU to handle the various requirements necessitates surveying the machine documents, mechanical drawings, and specifications of the machinery being used and of the finished product expected. Here are the major considerations for the engineer in configuring a system to meet his needs and selecting the proper CPU:

• I/O Points – Determining the number of Input and Output points the system will require is the basic first step in configuring a PLC system. This determination will ultimately decide most of the equipment options to follow. Fewer I/O Points leaves the engineer with the option of choosing CPUs with less memory and capability. A high number of I/O Points will require selections of a CPU with greater capabilities, such as more memory and speed. The accompanying chart delineates the various CPU options to meet virtually all system requirements. The number of I/O Points also dictates the number of racks the system will require, the number and type of input and output modules needed, and even the number of power supplies required.
• I/O Modules – After the engineer has determined the number of I/O Points his system requires, he can then select the I/O Modules he will need to configure the system. Since there are a significant number of I/O Modules available, he will need to refer to the accompanying table to determine his needs. Some selection factors include:
1. Voltage/Current – the Series 90-70 is capable of meeting all industrial voltage and current requirements. Considerations include AC/DC and 110V/120V or 240V. The answers to the voltage and current requirements also figure in selecting the power supplies to be used, as well as the I/O Modules.
2. Isolation – Will the system components need to protected from harsh environments, such as automotive spray booths or extreme temperatures? What are the distances the system components will be separated? The accompanying table lists the various options based on these factors.
3. Standardization – Does your company already use specific components to save on inventory, repair parts, and even training?
4. Cost – As noted above, smaller numbers of I/O Points require less expensive systems. Also noteworthy is the capability of using higher volume modules instead of 2 or 3 lower volume ones, saving on both module and rack/power supply expenses.
• Communication and Specialty Modules – Determining the type of communication requirements, such as Ethernet or other networks, aids in selecting the proper modules required. Requirements for interfacing with machinery, such as CNC, need to be assessed. Also, such needs as motion control, high speed inputs, servo control, and the like must be determined to properly configure the system.

Having made all of these system determinations, the engineer can now proceed to CPU selection. Series 90-70 CPUs have many options available, such as memory size, speed, performance, and even enhanced software options. They all have TOD (time of day) clocks and are password protected, and all (except CPU731) have keylock protection. All of the CPUs available (except CPU731) have floating point math capabilities, enabling decimal point calculations and the use of trigonometric, logarithmic, exponential, and radian conversion factors. The highest performance CPUs available in the Series 90-70 use the state-of-the-art 486DX4 microprocessor, with redundant operations capability. The CPM790 is programmed with software for use in Emergency Shut Down (ESD), fire and gas, and other critical control operations, Comparing the various CPUs is easy with the following table:

PART NUMBER	SPEED (MHz)	PROCESSOR	I/O POINTS (DISCRETE	I/O ANALOG	CPU MEMORY USER LOGIC RAM	USER FLASH MEMORY	FLOATING POINT MATH	SYSTEM
IC697CPU731	12	80C186 STANDARD	512	8K	32K	NO	NO	32 BIT
IC697CPX772	96	80486DX4 STANDARD	2048	8K	512K	256K	YES	32 BIT
IC697CPX782	96	80486DX4 STANDARD	12288	8K	1MB SLOW	256K	YES	32 BIT
IC697CPX928	96	80486DX4 STANDARD	12288	8K	6MB MEDIUM	256K	YES	32 BIT
IC697CPX935	96	80486DX4 STANDARD	12288	8K	1MB FAST	256K	YES	32 BIT
IC697CGR772	96	80486DX4 REDUNDANT HOT SWAP STANDBY	2048	8K	512K	NO	YES	32 BIT
IC697CGR935	96	80486DX4 REDUNDANT HOT SWAP STANDBY	12288	8K	1MB	NO	YES	32 BIT
IC697CPM790	64	80486DX2 REDUNDANT  HOT SWAP STANDBY	12288	8K INPUT 8K OUTPUT	1MB	NO	YES	32 BIT

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GE Fanuc Series 90-70 Digital Input/Output Modules

Input/Output Modules – The Series 90-70 has a wide selection of I/O Modules to aid the engineer in creating the most effective system available for his particular needs. I/O Modules are available with either analog I/O or discrete I/O. They can be selected for a wide range of voltage and current applications with various isolation and response time capabilities. Input modules provide the interface between the PLC system and all types of input devices such as proximity sensors, switches, push buttons, and actuators. Output Modules interface between the PLC system and devices such as contactors, relays, BCD displays, indicator lamps, and actuators. A comparison of various I/O Modules follows in the table below.

Series 90-70 Discrete I/O

PART  NUMBER	FUNCTION	RATED VOLTAGE	I/O CAPACITY	MAXIMUM CURRENT	VOLTAGE
IC697MDL252	INPUT	12 VAC 47 – 63 HZ	32  (4 GROUPS OF 8 EACH)	10 mA	N/A
IC697MDL253	INPUT	24 VAC 47 – 63 HZ	32  (4 GROUPS OF 8 EACH)	10 mA	N/A
IC697MDL254	INPUT	48 VAC 47 – 63 HZ	32  (4 GROUPS OF 8 EACH)	4.7 mA	N/A
IC697MDL250	INPUT	120 VAC 47 -63 HZ	32  (4 GROUPS OF 8 EACH)	10 mA	N/A
IC697MDL240	INPUT	120 VAC 60 HZ	16 INDIVIDUAL POINTS	10 mA	N/A
IC697MDL251	INPUT	120 VAC 47 – 63 HZ	16 (4 GROUPS OF 4 EACH)	10 mA	N/A
IC697MDL241	INPUT	240 VAC 60 HZ	16 INDIVIDUAL POINTS	10 mA	N/A
IC697MDL653	INPUT	24 VDC (+ or - LOGIC)	32  (4 GROUPS OF 8 EACH)	10 mA	-3 TO +30 VDC
IC697MDL652	INPUT	12 VDC (+ or - LOGIC)	32  (4 GROUPS OF 8 EACH)	4.7 mA	-2.5 TO +15 VDC
IC697MDL654	INPUT	48 VDC (+ or - LOGIC)	32  (4 GROUPS OF 8 EACH)	4.7 mA	-3 TO +56 VDC
IC697MDL651	INPUT	5 VDC	32 TTL	N/A	-3 TO +7 VDC
IC697MDL671	INPUT	24 VDC (+ or - LOGIC)	14 INTERRUPTS - 16 (4 GROUPS OF 4 EACH)	10 mA	-3 TO +30 VDC
IC697VDD100	INPUT	5 TO 250 VDC	64 INDIVIDUAL	0.7 mA  - 1.0 mA	+5 TO +250 VDC
IC697MDL350	OUTPUT (POINT)	120 VAC	32  (4 GROUPS OF 8 EACH)	0.5 AMPS/ POINT 2 AMPS/ GROUP	47 TO 63 HZ 85 TO 132 VOLTS
IC697MDL341	OUTPUT (POINT)	120/240 VAC	12 INDIVIDUAL	2 AMPS/POINT 16 AMPS/MODULE	47 TO 63 HZ 85 TO 264 VOLTS
IC697MDL753	OUTPUT (POINT)	5 TO 48 VDC	32 (2 GROUPS OF 16 EACH)	16 mA/POINT @5 VDC; 0.5 AMPS/POINT & 4 AMPS/GROUP @10 TO 60 VDC	5 VOLTS OR 10 TO 60 VOLTS
IC697MDL752	OUTPUT (POINT)	12 VDC	32  (4 GROUPS OF 8 EACH)	0.5 AMPS/ POINT 2 AMPS/ GROUP	10 TO 15 VOLTS
IC697MDL750	OUTPUT (POINT)	24 TO 48 VDC	32  (4 GROUPS OF 8 EACH)	0.5 AMPS/ POINT 2 AMPS/ GROUP	20 TO 60 VOLTS
IC697MDL740	OUTPUT (POINT)	24 TO 48 VDC	16 (4 GROUPS OF 4 EACH)	20 TO 60 VOLTS	2 AMPS/POINT 4 AMPS/GROUP
IC697MDL940	OUTPUT (RELAY)	120/240 VAC OR 5/24/125 VDC	16 (8 INDIVIDUAL & 2 GROUPS OF 4)	N/A	4 AMPS/GROUP 16 AMPS/MODULE
IC697VDQ120	OUTPUT (POINT)	N/A	8	0.5 AMPS/POINT 3.5 AMPS/MODULE	24 VDC
IC697VDR150	OUTPUT (RELAY)	N/A	32	2 AMPS	N/A
IC697VDR151	OUTPUT (RELAY)	N/A	64	N/A	N/A
IC697MDL640	INPUT	125 VDC (+ or - LOGIC)	16 (4 GROUPS OF 4 EACH)	5mA	-35 TO +145 VDC
IC697MDL340	OUTPUT (POINT)	120 VAC	16 (4 GROUPS OF 4 EACH)	2 AMPS/POINT 2 AMPS/GROUP	47 TO 63 HZ 85 TO 132 VOLTS

Series 90-70 PLC Analog I/O

PART NUMBER	FUNCTION	CURRENT/ VOLTAGE	I/O CHANNELS	DESCRIPTION
IC697ALG230	INPUT	BOTH	8	DUAL MODULE
IC697ALG440	INPUT	CURRENT	16	EXPANDER MODULE – USE WITH ALG230
IC697ALG441	INPUT	VOLTAGE	16	EXPANDER MODULE – USE WITH ALG230
IC697VAL132	INPUT	0  TO 20 mA	16 PAIRS OR 32 SINGLE	12 BIT
IC697VAL134	INPUT	0 TO 10 VDC; ±5 VDC; ± 10 VDC	16 PAIRS OR 32 SINGLE
IC697VAL216	INPUT	0 TO 5 VDC; O T0 10 VDC; ±2.5 VDC; ±5 VDC; ±10 VDC	16	16 BIT RESOLUTION; JUMPER SELECTABLE
IC697VAL232	INPUT	0 TO 5 VDC; O T0 10 VDC; ±2.5 VDC; ±5 VDC; ±10 VDC	32	16 BIT RESOLUTION; JUMPER SELECTABLE
IC697VAL264	INPUT	0 TO 5 VDC; O T0 10 VDC; ±2.5 VDC; ±5 VDC; ±10 VDC	64	16 BIT RESOLUTION; JUMPER SELECTABLE
IC697VRD008	INPUT	100 OHM RTD; ±30 MV;±100 MV	8	12 BITS; RTD STRAIN BRIDGE
IC697ALG320	OUTPUT	BOTH	4	DUAL MODULE
IC697VAL301	OUTPUT	0 TO 5 VDC; O T0 10 VDC; ±2.5 VDC; ±5 VDC; ±10 VDC	32	12 BIT
IC697VAL306	OUTPUT	VOLTAGE: 0 TO 5 VDC; O T0 10 VDC; ±2.5 VDC; ±5 VDC; ±10 VDC	16	12 BIT; VOLTAGE/CURRENT JUMPER SELECTABLE; CURRENT: 0 TO 20 mA; 4 TO 20 mA; & 5 TO 25 mA
IC697VAL328	OUTPUT	POLAR: 0 TO 10 VDC; 0 TO 5 VDC	8	12 BIT
IC697VAL318	OUTPUT	4 TO 20 mA	8	12 BIT
IC697VAL308	OUTPUT	BIPOLAR: ±2.5 VDC; ±5 VDC; ±10 VDC	8	12 BIT
IC697VAL324	OUTPUT	POLAR: 0 TO 10 VDC; 0 TO 5 VDC	4	12 BIT
IC697VAL314	OUTPUT	- 4 TO 20 mA	4	12 BIT
IC697VAL304	OUTPUT	BIPOLAR: ±2.5 VDC; ±5 VDC; ±10 VDC	4	12 BIT
IC697VAL348	OUTPUT	BIPOLAR: 0 TO 10 VDC	8	16 BIT

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GE Fanuc Series 90-70 Communications and Specialty Modules

Communication and Specialty Modules – The Series 90-70 PLC system offers an array of Communications Modules supporting the most common communications protocols and configurations such as bus controllers and Ethernet. These Modules enable communication with a range of devices such as remote drops, additional racks, and even interfacing with various products up to 7500 feet from the PLC. Specialty Modules allow interfacing with high-speed counters, Programmable Coprocessor Modules, hard disk drives, and even single board personal computers. The table below illustrates the versatility of Communication and Specialty Modules available.

PART NUMBER	TYPE	DESCRIPTION
IC697CMM711	COMMUNICATION	SERIAL COPROCESSOR, CCM, RTU, SNP, & SNPx PROTOCOLS
IC697CMM742	COMMUNICATION	ETHERNET INTERFACE
IC697VRM015	COMMUNICATION	REFLECTIVE MEMORY, 256K, 512 TRANSFER FIFO; 170 MBAUD FIBER OPTIC NETWORK SUPPORTS 256 NODES TO 2000 METERS
IC697RCM711	COMMUNICATION	REDUNDANCY COMMUNICATIONS HOT STANDBY MODULE
IC697BEM711	I/O INTERFACE	BUS RECEIVER, 1 PER EXPANSION RACK
IC697BEM713	I/O INTERFACE	BUS TRANSMITTER WITH PARALLEL PROGRAMMING PORT
IC697BEM731	I/O INTERFACE	GENIUS I/O BUS CONTROLLER
IC697BEM733	I/O INTERFACE	GENIUS REMOTE I/O SCANNER
IC697BEM761	I/O INTERFACE	I/O INTERFACE FOR SERIES 6+ PLCs
IC697HSC700	SPECIALTY	HIGH SPEED COUNTER
IC697PCM711	SPECIALTY	PROGRAMMABLE COPROCESSOR
IC697VSC096	SPECIALTY	SINGLE BOARD COMPUTER, 300MHZ, 32 MB SDRAM, 96 MB FLASH
IC697VHD001	SPECIALTY	10 GB HARD DRIVE FOR IC697VSC096 COMPUTER

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