4-Channel Analog Input Module GE IC697ALG321 Series 90-70
Manufacturer: GE Fanuc
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Part Number: IC697ALG321
Condition：New with Original Package
Product Type: Analog Input Module
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Fanuc IC697ALG321 Series 90-70 Analog Input Module
Configured for high-accuracy analog signal conversion in Series 90-70 PLC architectures, the GE Fanuc IC697ALG321 (IC697ALG321 Analog Input Module) provides direct physical signal execution across 4 isolated input channels.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC697ALG321 |
| Brand | GE Fanuc |
| Origin | United States |
| Weight | 0.74 kg (1.63 lbs) |
| Dimensions | 2.1 cm x 20.2 cm x 26.1 cm |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | 112 mA at +5 VDC (up to 0.8 A max depending on configuration) |
| Input Channels | 4 isolated analog channels |
| Signal Types | +/-10 VDC, 0-10 VDC, 4-20 mA |
| Resolution | 16-bit (14-bit monotonicity) |
| Conversion Rate | 2 ms per channel |
| Input Impedance | 250 ohms (current input) |
| Isolation | Channel-to-channel and channel-to-backplane |
Backplane Bus Communication Velocity & I/O Density Scaling
The module routes digitised process variables directly to the Series 90-70 PLC CPU over the internal backplane bus interface, executing conversion cycles at 2 ms per channel. The backplane logic draws a nominal current of 112 mA at +5 VDC from the rack power supply. Channel-to-channel and channel-to-backplane galvanic isolation preserves overall signal integrity across high-density I/O configurations by suppressing common-mode ground loops and electrical transients before data reaches the CPU memory buffer.
Frequently Asked Questions
Q: What mechanisms detect broken field wiring on 4-20 mA current loops?
A: The module executes integrated firmware diagnostics that flag underrange conditions when loop current drops below the valid 4 mA threshold, setting internal diagnostic status bits for the CPU scan.
Q: Is external power required to drive the internal analog conversion circuits?
A: No, the onboard logic and A/D conversion circuitry draw power directly from the +5 VDC backplane supply bus, though field transmitters must be powered independently or via loop power distribution blocks.
Q: Can channels be individually configured for different input signal ranges?
A: Yes, each of the 4 isolated channels supports independent software setup for +/-10 VDC, 0-10 VDC, or 4-20 mA signal types.
Field Installation Guidelines
Verify that all system power sources are shut off prior to inserting or removing the module from the Series 90-70 rack slot. Ensure proper wire routing for field inputs by using twisted shielded pair cables to reduce electromagnetic interference. Connect individual cable shields to the cabinet ground bus at a single point to prevent ground loops. Maintain a minimum engagement depth when tightening terminal block mounting screws, and maintain proper clearance around the rack assembly for vertical convective heat dissipation.