Fins Commands And Responses; Fins Message Service Communications; Command Code List; Response Code List - Omron CS1W-PRM21 Operation Manual

FINS Commands and Responses

5-1

FINS Commands and Responses

5-1-1

FINS Message Service Communications

FINS
Command Codes
Response Codes
5-1-2

Command Code List

5-1-3

Response Code List

100
FINS (Factory Intelligent Network Services) commands are message service
communications commands developed by OMRON for Factory Automation
control devices. They do not depend on a particular transmission path, and an
be used for reading from and writing to PLC memory or the Unit's memory,
sending or receiving acyclic messages over a network, or for controlling vari-
ous operations.
The FINS communications can be issued from a CPU Unit, Special I/O Unit,
or host computer, and they can also be sent to any of these. The specific com-
mands that can be sent depend on the destination.
When the source of the commands is a PLC CPU Unit, e.g. invoked by a user
program, the FINS commands are sent by means of CMND(490). For details
on FINS commands, refer to the Communications Commands Reference
Manual (W342)
Command codes are represented by a 2-byte hexadecimal code. FINS com-
mands always begin with a 2-byte command code; any parameters required
follow the command code.
The response code consists of a 2-byte hexadecimal code indicating the
results of command execution. The first byte provides the main response
code (MRES), which classifies the results, the second byte provides the sub-
response code (SRES), which contains details about the results.
The command codes listed in the following table are supported by the PROFI-
BUS-DP Master Unit. A PLC program can send these to the Unit
Command code
MRC SRC
01 01
04 01
02
05 01
21 02
03
Response codes are 2-byte codes which indicate the results of command
execution. They are returned in the response following the command code.
The first byte of a response code is the MRES (main response code), which
categorizes the results of command execution. The second byte is the SRES
(sub-response code) which specifies the results.
Command Response
code code
MRC SRC MRES SRES
Name
MEMORY AREA READ
RUN
STOP
CONTROLLER DATA READ
ERROR LOG READ
ERROR LOG CLEAR
MRC: Main request code
SRC: Sub-request code
MRES: Main response code
SRES: Sub-response code
Section 5-1
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