Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 274)

16–9 PCCC Host Commands
Publication 2755-833
Modify Configuration Data
Appendix A lists the address location for each configuration
parameter along with the byte size of the data and the default value.
To modify a specific parameter, send the write command with the
appropriate starting address and the appropriate data referenced in
Appendix A.
To modify the configuration data, send this command structure:
5
1
3
7
127
.
.
.
128
0
2
4
6
STS= 00H
Configuration Data Address (3C0H to 5FFH)
TNS
High Byte Low Byte
MSB LSB
CMD= 08H
Modify or (Write Over) Configuration Data
New Configuration Data
122 bytes maximum
.
.
.
The command includes new configuration data for specified
parameters.
0 STS= 00H
TNS
High Byte Low Byte
MSB LSB
1
3 2
Reply - Modify or (Write Over) Configuration Data
CMD Reply = 48H
An invalid configuration data address returns a status code of 10H
(invalid address).
Execute Decoder Functions
The unprotected write (08H) command is also used to execute
decoder functions or commands. Appendix A lists the decoder
functions you can perform and their respective addresses.
To execute a command listed in Appendix A, send an unprotected
write command to the specified command address.
The command and reply format for executing a decoder function is: