OMRON CQM1H-MAB42 ADDA-BOARD Communication Modules
$ 184.28
Description
OMRON CQM1H-MAB42 ADDA-BOARD Communication Modules . The MAB42 is a "hybrid" board that provides both high-speed counting and basic analog functionality in a single slot. For the MAB42 The MAB42 high-speed inputs are typically24V DC. If you are using a 5V encoder, you will need a signal converter or a different board. The Omron CQM1H-MAB42 is a specialized Inner Board for the legacy CQM1H series PLC. Specifically, it is a High-Speed Counter/Analog I/O Board . While the CQM1H is a modular PLC, "Inner Boards" are unique because they are installed directly into one of the two slots located inside the CPU unit itself (Slot 1 or Slot 2), rather than being mounted on the DIN rail as a separate module. 1. Technical Specifications The MAB42 is a "hybrid" board that provides both high-speed counting and basic analog functionality in a single slot. Feature Details High-Speed Counter Inputs 2 Channels (50 kHz max) Analog Inputs 4 Inputs (0-10V, -10V to +10V, or 0-20mA) Analog Outputs 2 Outputs (0-10V or -10V to +10V) Input Resolution 12-bit (1/4096) Board Location CPU Inner Board Slot 1 or 2 2. Functional Breakdown High-Speed Counter (HSC) The two HSC channels are used for tracking rapid pulses from encoders or sensors that are too fast for standard PLC inputs to catch. Modes: Supports Incremental (Phase A/B), Up/Down, or Pulse/Direction modes. Interrupts: Can be used to trigger high-priority interrupt tasks in the PLC program when a target count is reached. Analog I/O This board allows the CPU to interface directly with sensors (like pressure or flow meters) and actuators (like VFD speed references). Selection: You select between Voltage or Current for the inputs via physical DIP switches located on the board itself. Speed: Because it is an inner board, the data transfer to the CPU is faster than using an external CQM1-AD/DA module. 3. Installation and Setup Installing an inner board requires opening the CPU front cover: Power Down: Always turn off the PLC power before inserting or removing the board. Slot Assignment: The board can be placed in Slot 1 or Slot 2. The memory addresses ($IR$ bits) used by the board will change depending on which slot you choose. DIP Switches: Before insertion, ensure the switches on the board are set for your signal type (e.g., set to "ON" for 4-20mA current loops). 4. Addressing (Memory Allocation) The CQM1H assigns specific memory addresses to the inner boards. For the MAB42: Slot 1: Inputs start at IR 232 ; Outputs start at IR 236 . Slot 2: Inputs start at IR 234 ; Outputs start at IR 238 . Setup: You must configure the "PLC Setup" in CX-Programmer to tell the CPU that a MAB42 is present in the slot; otherwise, the board will not be initialized. 5. Troubleshooting Tips No Analog Reading: Verify the board-level DIP switches. If you send a 4-20mA signal to an input set for Voltage (OFF), the PLC will read 0 or erratic values. HSC Not Counting: Check the pulse voltage. The MAB42 high-speed inputs are typically 24V DC . If you are using a 5V encoder, you will need a signal converter or a different board. ERR/ALM LED on CPU: If the CPU shows a red error after installation, it usually means there is a "Unit Number" conflict or the board was not seated correctly in the internal connector.
