Overview
Configured for differential voltage signal acquisition in VersaMax I/O systems, the General Electric IC200ALG261 (IC200ALG261 Analog Input Module) provides direct electrical conversion of eight analog input signals for backplane-based PLC control. The module accepts differential voltage inputs over a +/-10 VDC range and processes each channel with 15-bit resolution. In addition, the module updates input data at a specified 7.5 ms rate.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC200ALG261 |
| Brand | General Electric |
| Series | VersaMax |
| Product Type | Analog Input Module |
| Input Type | Differential voltage |
| Number of Channels | 8 |
| Input Range | +/-10 VDC |
| Resolution | 15-bit |
| Resolution | 0.3125 mV = 1 count |
| Update Rate | 7.5 ms |
| Accuracy at 25 deg C | +/-0.3% typical of full scale; +/-0.5% maximum of full scale |
| Input Impedance | 100 kOhms maximum |
| Input Filter Response | N/A |
| 5 V Backplane Current Consumption | 200 mA maximum |
| Power Consumption | 5 VDC backplane, 200 mA maximum |
| Operating Temp | Not specified in the provided data |
| Origin | USA |
| Weight | 0.1 kg |
| Dimensions | 11 x 5.8 x 6.5 cm |
| Tariff Code | 8537101190 |
VersaMax Backplane Communication and I/O Density
The IC200ALG261 exchanges input data through the VersaMax backplane interface. Therefore, the module transfers eight channels of converted voltage data to the associated controller without requiring separate field communication wiring for each channel.
Its eight-point configuration increases analog I/O density within the VersaMax installation. Each channel uses differential voltage measurement, which supports signal acquisition where the measurement circuit requires a differential input connection. In addition, the specified 100 kOhms maximum input impedance defines the electrical loading characteristic presented to the connected signal source.
The module draws up to 200 mA from the 5 V backplane. Consequently, engineers should include this current requirement when calculating the available power capacity for the complete VersaMax I/O station.
Frequently Asked Questions
Q: How many analog input channels does the IC200ALG261 provide?
A: The IC200ALG261 provides eight differential voltage input channels.
Q: What voltage range does the IC200ALG261 accept?
A: The module accepts differential voltage inputs over a +/-10 VDC range.
Q: What backplane current does the IC200ALG261 require?
A: The module consumes up to 200 mA from the 5 V backplane.
Field Installation Guidelines
Install the IC200ALG261 in a compatible VersaMax I/O assembly according to the system hardware arrangement. Before inserting or removing the module, follow the applicable equipment power and maintenance procedures.
Route analog signal wiring separately from high-current power cables, motor leads, and switching circuits. This separation reduces externally induced electrical noise on low-level analog signals.
Use shielded cable where the field environment produces significant electromagnetic interference. In addition, terminate cable shields according to the overall system grounding design to avoid unwanted ground loops.
Verify the differential input wiring polarity before commissioning. Then confirm that each connected field signal remains within the specified +/-10 VDC input range. Finally, check the available 5 V backplane current capacity for the complete I/O configuration before placing the system into operation.
