SMC Networks 1560 user manual MBP Global Data

Chapter 4 — Programming Considerations

Contents

Word

0 Slave 33

8	Slave 37
10
12

30 Slave 48

Global Data Sent from Host

(2 words per slave)

1560-MBP

Control Word

Reference

Adaptor I/O-A1

Adaptor I/O-A2

Adaptor I/O-B1

Adaptor I/O-B2

Adaptor I/O-C1

Adaptor I/O-C2

Adaptor I/O-D1

Adaptor I/O-D2

Global Write Space

(Slave 37)

From Global Data Table

MSTR Type 1 accessible only

Relationship between Global Data from Host and 1560-MBP Control & Reference Words: The diagram shows an example if Slave 37 was configured for Global Data Control and where the Control/Reference words would come from in the Global Data from a Host.

The following table details the relationship between the Modbus Plus addresses and the Global Data Table:

1560-MBP	Global Data
Modbus Plus	Table	Description
Address	Index
1,17,33,49	0	Control Word
	1	Reference Word
2,18,34,50	2	Control Word
	3	Reference Word
3,19,35,51	4	Control Word
	5	Reference Word
4,20,36,52	6	Control Word
	7	Reference Word
5,21,37,53	8	Control Word
	9	Reference Word
6,22,38,54	10	Control Word
	11	Reference Word
7,23,39,55	12	Control Word
	13	Reference Word
8,24,40,56	14	Control Word
	15	Reference Word
9,25,41,57	16	Control Word
	17	Reference Word
10,26,42,58	18	Control Word
	19	Reference Word
11,27,43,59	20	Control Word
	21	Reference Word
12,28,44,60	22	Control Word
	23	Reference Word

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