MicroLogix, SLC, and PLC-5 interface
3785_en_B
PHOENIX CONTACT
75
6.2
Messages
The PLC-5 and SLC PLCs support the following PCCC messages. MicroLogix PLCs
typically support only the SLC-type messages.
6.3
File addressing
PLC-5 and SLC messages should be addressed in the following manner.
Table 6-2
PCCC message types
Message type
PCCC message ID
Maximum message size
Maximum serial packet size
SLC typed read
162
CLX: 242 SINTs (121 INTs)
SLC: 206 SINTs (103 INTs)
PLC-5: 240 SINTs (120 INTs)
CLX: 238 SINTs (119 INTs)
SLC: 202 SINTs (101 INTs)
PLC-5: 236 SINTs (118 INTs)
SLC typed write
170
CLX: 220 SINTs (110 INTs)
SLC: 206 SINTs (103 INTs)
PLC-5: 238 SINTs (119 INTs)
CLX: 216 SINTs (108 INTs)
SLC: 202 SINTs (101 INTs)
PLC-5: 234 SINTs (117 INTs)
PLC-5 typed read
104
CLX: 234 SINTs (117 INTs)
SLC: 252 SINTs (126 INTs)
PLC-5: 238 SINTs (119 INTs)
CLX: 230 SINTs (115 INTs)
SLC: 248 SINTs (124 INTs)
PLC-5: 234 SINTs (117 INTs)
PLC-5 typed write
103
CLX: 226 SINTs (113 INTs)
SLC: 226 SINTs (113 INTs)
PLC-5: 224 SINTs (112 INTs)
CLX: 222 SINTs (111 INTs)
SLC: 222 SINTs (111 INTs)
PLC-5: 220 SINTs (110 INTs)
Table 6-3
PLC-5 and SLC message addressing
Serial port number
Receive data
Receive data
produced sequence
number
Transmit data
Transmit data
sequence number
1
N10:0
N10:128
N11:0
N11:128
2
N20:0
N20:128
N21:0
N21:128
3
N30:0
N30:128
N31:0
N31:128
4
N40:0
N40:128
N41:0
N41:128
Socket port number
Receive data
Receive data
produced sequence
number
Transmit data
Transmit data
sequence number
1
N50:0
N50:128
N51:0
N51:128
2
N60:0
N60:128
N61:0
N61:128
3
N70:0
N70:128
N71:0
N71:128
4
N80:0
N80:128
N81:0
N81:128
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