Rockwell Automation 56AMXN/B ControlLogix AutoMax Comm Module - Manual (Page 22)

Page 22 AutoMax DCSNet /RE RIO Module
Publication number 56AMXN-UM002A-EN-P November 2002
Register 16 contains CRC errors. This counter increments when the
module receives a packet with a bad CRC.
Register 17 contains overrun errors. This counter increments when the
module receives a packet that is longer than 272 bytes.
Register 18 contains abort errors. This counter increments when the
module starts to receive a packet but the packet is never completed.
Register 19 contains a running count of messages transmitted.
Offset Description
4 Drop status, drops 0 – 15
5 Drop status, drops 16 - 31
6 Drop status, drops 32 – 47
7 Drop status, drops 48 – 55
12 56AMXN drop number
14 Messages received
15 Receive timeouts
16 CRC errors
17 Overrun errors
18 Abort errors
19 Messages transmitted
20 56AMXN drop depth
Table 5 Diagnostic Registers
For example, if you set Local:0:C.InputDropMap[4].Block[3] to 0, then
Local:0:I4.Block[3].Data contains the diagnostic counters, in
Local:0:I4.Block[3].Data[0] to Local:0:I4.Block[3].Data[31]
Note: You cannot map the diagnostic counters more than once.