Appendix 2 Dissimilarities Between A1Sj71Pb96F New Products (Software Version C Or Later) And Conventional Products (Software Version B Or Before); Dissimilarities Between A1Sj71Pb96F New Products (Software Version C Or Later) - Mitsubishi Electric A1SJ71PB96F User Manual

APPENDIX
Appendix 2 Dissimilarities Between A1SJ71PB96F New Products
(Software Version C or Later) and Conventional Products
(Software Version B or Before)
2.1
(1) The size of data that can be handled per single communication has been changed.
New product
232 bytes (1856 bits)
The following three services are affected by the change in data size.
Specifications for the other services remain unchanged.
Service
Read
Write
Information Report
*1 Supports new data size only when receiving send information from the client (requestor).
Sub-index
None
Provided
Sub-index
None
Provided
Sub-index
None
Provided
Dissimilarities Between A1SJ71PB96F New Products (Software
Version C or Later) and Conventional Products (Software Version B or
Before)
Function
The Boolean data service to be able to do the handling in each service is as follows.
a) Read service
As only data is contained in the response frame of the Read command, the size that can
be handled is constant regardless of the access mode.
Access mode
b) Write service
In the AJ71PB96F/A1SJ71PB96F, if variables are designated , the variable name is
handled as 32 fixed characters. Thus, the size that can be handled is constant
regardless of the variable size.
Access mode
c) Information Report (Receive) service
In the AJ71PB96F/A1SJ71PB96F, if variables are designated, the variable name is
handled as 32fixed characters. Thus, the size that can be handled is constant regardless
of the variable size.
Access mode
Conventional product
128 bytes (1024 bits)
O: Supports new data size : Spec not changed
Client (requestor)
O
O

Index
Unsigned 16 Bit
232 bytes
232 bytes
Index
Unsigned 16 Bit
232 bytes
231 bytes
Index
Unsigned 16 Bit
232 bytes
231 bytes
A-4
MELSEC-A
Server (receiver)


O *1
Variable-Name
1 to 32 Oct.
232 bytes
232 bytes
Variable-Name
1 to 32 Oct.
202 bytes
200 bytes
Variable-Name
1 to 32 Oct.
202 bytes
200 bytes