Appendix G MSG-SND/MSG-RCV Functions (Ethernet)
G.1 Message Transmit Function (MSG-SND)
A-67
G.1.5 Function Setting and Parameter Details for MELSEC Protocol
This section explains MSG-SND function setting and its parameter list details when MELSEC is used as a protocol.
( 1 ) Message Transmit Function Setting
( a ) 218IFA Setting Example
An example of a function setting when 218IFA is used as a communication device follows:
Set the protocol type to MEMOBUS when used in MELSEC protocol.
Set the circuit number in accordance with the circuit number allocated to the target 218IFA.
Set a unique communication buffer channel for the same circuit.
For information on the register number, refer to
G.1.2 ( 1 ) Input Item
and
G.1.2 ( 2 ) Output Item
.
( b ) 218IF Setting Example
An example of a function setting when 218IF is used as a communication device follows:
Set the protocol type to MEMOBUS when used in MELSEC protocol.
Set the circuit number in accordance with the circuit number allocated to the target 218IF.
Set a unique communication buffer channel for the same circuit.
For information on the register number, refer to
G.1.2 ( 1 ) Input Item
and
G.1.2 ( 2 ) Output Item
.
( 2 ) Process Result (PARAM00)
Refer to G.1.4 ( 2 ) Process Result (PARAM00).
( 3 ) Status (PARAM01)
Refer to G.1.4 ( 3 ) Status (PARAM00).
( 4 ) Connection Number (PARAM02)
Refer to G.1.4 ( 4 ) Connection Number (PARAM02).
Execute
Communication device = 218IFA
Protocol = MEMOBUS
Circuit number = 1
Communication buffer channel = 1
Parameter list start address
(use DW00000 to DW00016)
Abort
Dev-Typ
Pro-Typ
Cir-No
Ch-No
Param
MSG-SND
Busy
Complete
Error
DB000201
DB000202
00016
00001
00001
DA00000
00001
DB000210
DB000211
DB000212
Execute
Abort
Dev-Typ
Pro-Typ
Cir-No
Ch-No
Param
MSG-SND
Busy
Complete
Error
DB000201
DB000202
00006
00001
00001
DA00000
00001
DB000210
DB000211
DB000212
Communication device = 218IF
Protocol = MEMOBUS
Circuit number = 1
Communication buffer channel = 1
Parameter list start address
(use DW00000 to DW00016)
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