7. COMMUNICATION THAT DO NOT REQUIRE
THE SEQUENCE PROGRAM
MELSEC-A
7-31
7.2.3
FMA7 connection initiation (FMA7 Initiate: Responder)
When conducting communication between the AJ71PB96F/A1SJ71PB96F and the FMA7 "FMA7
Initiate" service is issued from the client and a logical connection is established.
[Parameters required by the client]
•
Max Send PDU Size (Low Priority) (Calling)
FMA7 communication packet size that can be used for transmission.
Max Send PDU Size (L) value
PDU size
•
Max Receive PDU Size (Low Priority) (Calling)
FMS communication packet size that can be used for reception.
Max Receive PDU Size (L) value
PDU size
•
Features Supported (Calling)
Types of services that can be used.
Features Supported value
Features Supported octet string
[Server (AJ71PB96F/A1SJ71PB96F) answer parameters]
None
Point
To establish a connection in PROFIBUS-FMS the reception side capability must be equal to or
exceed (
≥
) the transmission side capability.
When establishing a connection, set the following between the two stations.
Station A
Station B
MaxSendPDUSize
(Low Priority)
≤
MaxReceivePDUSize
(Low Priority)
MaxReceivePDUSize
(Low Priority)
≥
MaxSendPDUSize
(Low Priority)
Feature Supported (n)th bit
≤
Feature Supported (n+8)th bit
(0
≤
n
≤
8)
Feature Supported (m+8)th bit
(0
≤
m
≤
8)
≥
Feature Supported (m)th bit
Note
The Feature Supported value in AJ71PB96F/A1SJ71PB96F is fixed to 00 78 00 00 00 00 (hex).