Peripheral Devices
9836 3521 01 541
8.13.4.5 Allen-Bradley Data Highway (Plus)
Two types of commands are supported, unprotected read for reading data from PowerMACS and
unprotected write for writing data to PowerMACS. Checksum is calculated as the 2‟s complement of the
modulo-256 sum of all bytes from the first byte after DLE-STX up until but not including DLE-ETX.
PowerMACS will respond to all telegrams independent of destination DST from XD.
Reading 5 integers at address 500
Writing 5 integers at address 0
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