Product Introduction
IC697ALG230 is an Analog Input Base Converter Module produced by GE Fanuc Automation. It was originally used in its Series 90-70 programmable controller (PLC) platform and some compatible architectures. Its main function is to convert analog signals (such as voltage or current signals) from field devices into digital quantities (AI variables) in the control system, so that the PLC core logic processor can collect, process, and control them.
Technical Specifications
|
Manufacture |
GE |
|
Model |
IC697ALG230 |
| Part Number |
IC697ALG230F |
|
Description |
Analog Input Module |
|
Origin |
USA |
|
Dimension |
30*20*6cm |
|
Weight |
0.65kg |
Product Details
IC697ALG230 Core Function and Working Principle
Simulation Signal Acquisition and Processing
The core function of IC697ALG230 is to collect and convert analog input data. It offers 8 differential analog channels, each of which can be independently configured as either current mode or voltage mode input. This design is more flexible compared to fixed input types.
Voltage input: Typically supports a range of -10 VDC to +10 VDC.
Current input: Supports 4 - 20 mA current loop mode.
Hardware installation
In the GE Series 90-70 PLC architecture, IC697ALG230 is a "base converter" analog input module. It is responsible for converting analog signals (voltage or current) from the field into digital values that the PLC can handle (%AI). The module itself cannot operate independently; it needs to be inserted into the 90-70 I/O rack and connected to the CPU via the backplane.
The module interface is equipped with a detachable terminal block for connecting the field sensor/transmitter cables:
Differential input pair: Each channel has two input terminals, corresponding to the positive/negative terminals of the signal.
When using an oltage input: The positive terminal is connected to the output of the on-site voltage source, and the negative terminal is connected to the common negative reference. In the current loop: The 4-20 mA loop must be closed for a complete circuit, and it contains a load resistor to meet the standard loop design requirements.
fAQ.Diagnosis and Exception Handling
The Series 90-70 and IC697ALG230 modules offer partial automatic diagnostic capabilities:
Q: Open-wire Detection
A:In the 4-20 mA mode, when a certain circuit is detected to be disconnected (for example, if the sensor line is open), the module can set this channel to the preset fault value or the maximum value, and then feed back the status to the PLC.
Q: Signal over-limit alarm
A:The PLC program can perform upper/lower limit checks on %AI data. When the data is abnormal (such as exceeding the range), it will trigger an alarm or switch to safety logic.
Q:Ensure that the model is compatible with the series.
A:IC697ALG230 belongs to the Series 90-70 analog input module. It requires the backplane and CPU system of Series 90-70 for support and cannot be directly plugged into PACSystems or other series of machines.
Q: The software parameters are set incorrectly.
A:If the parameter is set to current but a voltage signal is connected instead, or if the user scale definition is incorrect, the values in the PLC program will not match the expectations. It is necessary to confirm in the engineering software that the channel settings match the on-site sensors.