Appendix G MSG-SND/MSG-RCV Functions (Ethernet)
G.2 Message Receive Function (MSG-RCV)
A-95
( 3 ) Status (PARAM01)
Outputs status of the communication section (communication device).
The following figure shows the bit assignment. Bit assignment details are listed in the tables following.
[ a ] REQUEST (request)
Outputs whether MSG-RCV function is requesting a process.
[ b ] RESULT (result)
Outputs the execution result of the MSG-RCV function.
[ c ] COMMAND (command)
Outputs a process command for the MSG-RCV function. The executed process contents can be found according to the
command.
FEDCBA9876543210
Bit F
(a) REQUEST
Bits C to E
(b) RESULT
Bits 8 to B
(c) COMMAND
Bits 0 to 7
(d) PARAMETER
Bit State Contents
1 Requesting processing
0 The acceptance of process request is completed
Code Abbreviation Meaning
0 CONN_NG In Ethernet communication, transmission or connection error is completed
1 SEND_OK Normal transmission complete
2 REC_OK Normal reception complete
3 ABORT_OK Forced abort complete
4 FMT_NG Parameter format error
5 SEQ_NG Command sequence error
6 RESET_NG Reset state
7 REC_NG Data reception error (error detected in the lower layer program)
Code (Hex) Abbreviation Meaning
1 U_SEND General-purpose message transmission (for non-procedural protocol)
2 U_REC General-purpose message reception (for non-procedural protocol)
3 ABORT Forced abort
8 M_SEND MEMOBUS command transmission: Completed when response is received
9 M_REC MEMOBUS command reception: Accompanies a response transmission
C MR_SEND MEMOBUS response transmission
To Next Page
Loading...
