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Contents
Chapter 4 — Programming Considerations
13,29,45,61 24
25
14,30,46,62 26
27
15,31,47,63 28
29
16,32,48,64 30
31
1560-MBP
Modbus Plus
Address
Global Data
Table
Index
Description
Control Word
Reference Word
Control Word
Reference Word
Control Word
Reference Word
Control Word
Reference Word
This instruction “publishes” Global Data on the Modbus Plus network
from the Host PLC. Up to 32 words can be transmitted from the Host,
allowing up to 16 1560-MBP units to be controlled. When the 1560-MBP
reads the Global Data it first examines the source node address to
assure it matches the dip switch configured Host Node Address, and
then retrieves the two words that relate to its node from the packet.
enable -
abort -
Modicon Programming Example - MSTR 5
- active
40400
40410
MSTR
00032
- error
- success
Contents of registers in control block
40400 = 5 Global write data instruction
40401 = 0 Error code
40402 = 32 Global Data block length
(Max 32 words)
40403 = 0 N/A
40404 = 0 N/A
40410 = Source of the Global Out Data
40410
40411
40412
40413
•
•
40420
40421
•
•
40440
40441
Controller
Address
Node
Description
Control Word
Reference Word
Control Word
Reference Word
Control Word
Reference Word
33
34
•
•
•
•
37
Control Word
Reference Word
•
•
•
•
48