Dressler CESAR 1312, User Manual

Page: 95 / 194

CESAR 1312 (E) Communication Interfaces 4-61
CESAR™ 1312 Generator
FC23 Exception Error Packet
Table 4-14 describes the bytes contained in an FC23 exception error packet.
Host Port Commands
The following sections describe the commands used by the CESAR generator
host ports. Most host port commands are the same for all of the available
interfaces. Differences are noted where they exist.
Note: To determine which host port option you have, see “Understanding
Model 1312 Options” on page 1-2 .
This revision of the manual provides information associated with software
release 1.16. This version of the software included changes to the error and
warning messages. Please use an appropriate revision of this manual for
earlier versions of the software. If you do not have the appropriate manual,
contact Customer Support (see
“Customer Support” on page 6-14 ).
Note: The unit reports the software revision level with host port command 198
(see Table 4-16 on page 4-63 ).
The following sections describe the command status response (CSR) codes
returned by the CESAR generator in response to a host port command, as
well as the host port commands for the CESAR generator.
Table 4-14. Packet format for FC23 exception error
Byte
Numbers
Purpose Response Value
0 and 1 Transaction ID Not used (value is copied from send
packet)
2 and 3 Protocol ID 0
4 and 5 Number of
bytes following Count of bytes in packet, starting with
byte 6
6 Unit ID 0 (copied from send packet; denotes the
default AE Bus address)
7 Function code
+ 0x80h 151 = 0x97h
8 Exception code Exception code
• 01 = Illegal function
• 02 = Illegal register reference
• 03 = Illegal data value