Mitsubishi Electric QJ71DN91, Руководство пользователя

Страница: 61 / 234

3 - 31 3 - 31
MELSEC-Q
3 SPECIFICATIONS
3.4.5 Master function parameter setting area
Parameters for master function are set in this area.
To exchange I/O data with each slave node (up to 63 nodes), information such as
connection types and I/O points is set.
(1) Parameters for Master Function (address: 01D4
H
to 03CF
H
/468 to
975)
Master function parameters are set in this area.
For use of auto configuration, refer to Section 7.3 (2).
For saving parameters to a flash ROM, refer to Section 7.3 (3).
Table 3.24 Master function parameters
Buffer memory
address (Hex.)
Item Description
01D4
H
to
01D6
H
Use prohibited —
01D7
H
Constant scan
Specified to keep link scan time constant.
(Setting range: 0 to 65535ms (FFFF
H
))
*1
01D8
H
1st slave
node
Node No. and message
group
Low byte: Node No. (MAC ID) of the 1st slave node
00
H
to 3F
H
(0 to 63)
High byte: 01
H
Node that supports UCMM and uses any of message groups
3, 2, and 1.
03
H
Node that supports UCMM and uses message group 1
04
H
Node that does not support UCMM (Group 2 only server)
80
H
Reserved node
01D9
H
Connection type
Select a connection type for I/O communication.
0001
H
= Polling
0002
H
= Bit strobe
0004
H
= Change of state
0008
H
= Cyclic
01DA
H
Number of byte modules
Low byte: Number of input byte modules
High byte: Number of output byte modules (set in hexadecimal)
Eight bit modules (8 points) are counted as one byte module.
01DB
H
Number of word modules
Low byte: Number of input word modules
High byte: Number of output word modules (set in hexadecimal)
01DC
H
Number of double-word
modules Low byte: Number of input double-word modules
High byte: Number of output double-word modules (set in hexadecimal)
01DD
H
Expected packet rate
Set an expected packet rate for the slave node.
Setting varies depending on the connection type. For details, refer to Table
3.25. (Setting range: 0 to 65535ms (FFFF
H
))
*1
0000
H
: 200ms (Default)
Other than 0000
H
: Set value – 1 (ms)