YOKOGAWA Vigilantplant SMARTDAC+ Series, User Manual

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5
IM 04L51B01-18EN
Explicit Message
An Explicit message is a point-to-point, request/response-type communication.
System Configuration on PLC
Use the configuration tool to code an Explicit message as an MSG instruction in the
control logic. In the MSG instruction, set all the information including a target device,
target register, and read/write. Download the created control logic to a PLC and execute
it.
On the GX/GP, the data count to be accessed per MSG instruction should be 100 or less.
In Case of PLC-2, PLC-5, and SLC
• Commands
When creating an MSG instruction, specify a command. The GX/GP supports the
following commands:
Target PLC Command name
PLC-2 PLC2 Unprotected Read/Write
PLC-5 PLC5 Word Range Read/Write
PLC5 Typed Read/Write
SLC SLC Typed Read/Write
• Specification of data to be accessed
Specify which of the data in the GX/GP should be accessed. The PLC-2, PLC-5, and SLC
manage data to be accessed in units of “files.”
Command: PLC2 Unprotected Read/Write
Data to be accessed File number
Data type: INT16 Type Number
Input/Output channel
(GX/GP main unit)
0001 1000
• • • • • •
0050 1049
0101 1050
• • • • • •
0150 1099
0201 1100
• • • • • •
0250 1149
0301 1150
• • • • • •
0350 1199
0401 1200
• • • • • •
0450 1249
0501 1250
• • • • • •
0550 1299
0601 1300
• • • • • •
0650 1349
0701 1350
• • • • • •
0750 1399
0801 1400
• • • • • •
0850 1449
0901 1450
• • • • • •
0950 1499
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