OVERVIEW

Official designation: Omron CQM1-LK501 (SYSMAC CQM1 Series, I/O Link Module)

Role/Application: This communication unit acts as an I/O Link master module, enabling high-speed, two-wire semi-duplex RS-485 data exchange between the CQM1 PLC and field I/O devices.

KEY SPECS SUMMARY

Interface: RS-485

Communication Method: Two-wire semi-duplex

Transmission Speed: 187.5 kbps max

Maximum Transmission Distance: 200 meters

I/O Points: 64 total points (32 in / 32 out)

Current Consumption: 150 mA max at 5 VDC

External Output: G6D SPST-NO relay, 2 A max

I/O Delay: 8 ms per 64 points

Operating Temp: 0 to 55 degrees C

Compatibility: Omron CQM1 PLC system

Lifecycle: Obsolete or discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum number of I/O points that the CQM1-LK501 module can manage?

A: The module can manage a total of 64 I/O points, typically configured as 32 inputs and 32 outputs.

Wiring & Installation:

Q: What type of cable is required for the communication path on the CQM1-LK501 module?

A: A two-core cable is required for the two-wire semi-duplex RS-485 transmission path.

Troubleshooting & Compatibility:

Q: What is the maximum distance for data transmission without using repeaters?

A: The maximum transmission distance for the RS-485 communication is 200 meters.

Replacement & Upgrades:

Q: Is the CQM1-LK501 module still an active product in the Omron lineup?

A: The CQM1-LK501 is obsolete and discontinued by the manufacturer.