Spectrum Controls 1756sc-OF8H Series A - Manual (Page 93)

Chapter 7: HART Channel Configuration, Data, and Status 79
Table 7.6 (Generic CIP Configuration)
Unconnected Message Header
Field Value Definition
Message Type “CIP Generic” Control and Information Protocol (CIP) A native communications protocol used
on Allen-Bradley’s ControlNet communication network.
Service Code 0x32
Class Name 0xB0
Instance Name 0x01
Object Attribute Leave blank
Source ? The tag defining the data sent to the HART module
Number of elements ? The number of elements defined by the command that is used
Destination ? The tag where the reply data will be written
The MSG configuration screen is then loaded with the data from table 7.6.
See figure below.
Figure 7.8 (Message Configuration Dialog)
After the configuration screen is loaded with the data, the actual module
specific commands are loaded into the MSG source tag. When the MSG
instruction executes, the module specific command is passed to the module
via the MSG "source" tag and the reply data is passed to the MSG
"destination" tag. The module specific commands include, HART
suspension, HART resume, get device information, and the HART pass-
through commands. The tables on the following pages show the format
for each module specific command.
Note: The source length should be large enough to accommodate the
HART message string.