Modbuslocpara Data Type - Allen-Bradley Micro800 General Instructions Manual

Programmable controllers

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Table of Contents

Communication instructions

MODBUSLOCPARA data type

The following table describes the MODBUSLOCPARA data type parameters.

Micro800 PLC serial port number:

• 2 for the embedded serial port, or

• 5-9 for serial port plug-ins installed in slots 1 through

• 5 for slot 1

• 6 for slot 2

• 7 for slot 3

• 8 for slot 4

• 9 for slot 5

Represents one of the following:

• 0: Msg Triggered Once (when IN goes from False to True)

• 1: Msg triggered continuously when IN is True

• Other value: Reserved

Represents one of the following:

• 01: Read Coil Status (0xxxx)

• 02: Read Input Status (1xxxx)

• 03: Read Holding Registers (4xxxx)

• 04: Read Input Registers (3xxxx)

• 05: Write Single Coil (0xxxx)

• 06: Write Single Register (4xxxx)

• 15: Write Multiple Coils (0xxxx)

• 16: Write Multiple Registers (4xxxx)

• Others: See MODBUSLOCPARA custom command support.

• For Read Coil/Discrete inputs: 2000 bits

• For Read Register: 125 words

• For Write Coil: 1968 bits

• For Write Register: 123 words

Rockwell Automation Publication 2080-RM001D-EN-E - February 2015