Allen-Bradley 1738-IE4CM12 ArmorPoint Analog Input Module
Configured for 4-channel analog signal processing in ArmorPoint I/O architectures, the Allen-Bradley 1738-IE4CM12 (1738-IE4CM12 Analog Input Module) provides direct physical/electrical execution. It digitizes 4 single-ended current/voltage field signals and transfers measurement data across EtherNet/IP or DeviceNet distributed subnetworks via the ArmorPoint backplane bus.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1738-IE4CM12 |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 0.35 lbs (0.16 kg) |
| Dimensions | Standard ArmorPoint On-Machine I/O Module |
| Operating Temp | -20 to +60 deg C (-4 to +140 deg F) |
| Power Consumption | 75 mA @ 24 VDC backplane current |
| Number of Inputs | 4 channels |
| Input Type | Single-ended (Current / Voltage) |
| Ingress Protection | IP67 / IP69K (Sealed) |
| Connector Type | M12 Micro-Change connectors |
| Keyswitch Position | Position 3 |
High-Density On-Machine Scaling and Deterministic Network Performance
Designed for direct mounting on machinery without an enclosure, the module features an IP69K sealed housing that withstands high-pressure washdowns and chemical wash exposure. Field sensor signals are digitized and routed across the internal backplane bus, maintaining EtherNet/IP or DeviceNet deterministic communication velocity without dropped packets. Internal firmware flash compatibility ensures seamless I/O density scaling and automatic device re-configuration when replacing modules on active industrial networks.
Frequently Asked Questions
Q: What is the purpose of the M12 connectors and IP69K rating on the 1738-IE4CM12?
A: The sealed housing and M12 Micro-Change keyways provide dust-tight protection and resistance to continuous high-pressure washdowns, allowing direct mounting on machines without a protective panel.
Q: What keying setting is required on the ArmorPoint base for this module?
A: The mechanical keyswitch on the mounting base must be rotated to Position 3 to match the hardware keyway of the 1738-IE4CM12 and prevent insertion of incorrect module types.
Field Installation Guidelines
- Turn off backplane power and sensor field supply before installing or servicing the ArmorPoint module.
- Set the mechanical keyswitch on the 1738 mounting base to Position 3 before mating the module body.
- Press the module firmly onto the base until the latching mechanism locks it into position, maintaining IP69K seal integrity.
- Connect field analog sensors using pre-molded M12 Micro-Change cables, torquing the coupling nuts hand-tight to ensure a watertight connection.
- Ensure all unused M12 connector ports are covered with IP69K protective caps to prevent moisture ingress into the module pins.
Allen-Bradley 1738-IE4CM12 ArmorPoint Analog Input Module
Allen-Bradley 1738-IE4CM12 ArmorPoint Analog Input Module
Configured for 4-channel analog signal processing in ArmorPoint I/O architectures, the Allen-Bradley 1738-IE4CM12 (1738-IE4CM12 Analog Input Module) provides direct physical/electrical execution. It digitizes 4 single-ended current/voltage field signals and transfers measurement data across EtherNet/IP or DeviceNet distributed subnetworks via the ArmorPoint backplane bus.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1738-IE4CM12 |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 0.35 lbs (0.16 kg) |
| Dimensions | Standard ArmorPoint On-Machine I/O Module |
| Operating Temp | -20 to +60 deg C (-4 to +140 deg F) |
| Power Consumption | 75 mA @ 24 VDC backplane current |
| Number of Inputs | 4 channels |
| Input Type | Single-ended (Current / Voltage) |
| Ingress Protection | IP67 / IP69K (Sealed) |
| Connector Type | M12 Micro-Change connectors |
| Keyswitch Position | Position 3 |
High-Density On-Machine Scaling and Deterministic Network Performance
Designed for direct mounting on machinery without an enclosure, the module features an IP69K sealed housing that withstands high-pressure washdowns and chemical wash exposure. Field sensor signals are digitized and routed across the internal backplane bus, maintaining EtherNet/IP or DeviceNet deterministic communication velocity without dropped packets. Internal firmware flash compatibility ensures seamless I/O density scaling and automatic device re-configuration when replacing modules on active industrial networks.
Frequently Asked Questions
Q: What is the purpose of the M12 connectors and IP69K rating on the 1738-IE4CM12?
A: The sealed housing and M12 Micro-Change keyways provide dust-tight protection and resistance to continuous high-pressure washdowns, allowing direct mounting on machines without a protective panel.
Q: What keying setting is required on the ArmorPoint base for this module?
A: The mechanical keyswitch on the mounting base must be rotated to Position 3 to match the hardware keyway of the 1738-IE4CM12 and prevent insertion of incorrect module types.
Field Installation Guidelines
- Turn off backplane power and sensor field supply before installing or servicing the ArmorPoint module.
- Set the mechanical keyswitch on the 1738 mounting base to Position 3 before mating the module body.
- Press the module firmly onto the base until the latching mechanism locks it into position, maintaining IP69K seal integrity.
- Connect field analog sensors using pre-molded M12 Micro-Change cables, torquing the coupling nuts hand-tight to ensure a watertight connection.
- Ensure all unused M12 connector ports are covered with IP69K protective caps to prevent moisture ingress into the module pins.
