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CHAPTER 5: ETHERNET/IP PROTOCOL
Write Tag (where responses are written by the HS500E)
EMS_Write1 [0] = (2) the counter is copied here by the HS500E to ACK
EMS_Write1 [1] = (3) the HS500E increments this counter to signal a response is
available
EMS_Write1 [2] = Data Size
EMS_Write1 [3-102] = Data
Read Tag (where commands are retrieved by the HS500E)
EMS_Read1 [0] = (4) PLC copies the counter here to ACK the response
EMS_Read1 [1] = (1) PLC increments this counter after writing a command
EMS_Read1 [2] = Data Size
EMS_Read1 [3-102] = Data
HS500E – OPERATOR’S MANUAL P/N: 17-1305 REV02 (12-05)
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