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7. COMMUNICATION THAT DO NOT REQUIRE
THE SEQUENCE PROGRAM
7.2.3
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)
• Max Receive PDU Size (Low Priority) (Calling)
• Features Supported (Calling)
[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.
Note
The Feature Supported value in AJ71PB96F/A1SJ71PB96F is fixed to 00 78 00 00 00 00 (hex).
FMA7 connection initiation (FMA7 Initiate: Responder)
FMA7 communication packet size that can be used for transmission.
Max Send PDU Size (L) value
PDU size
FMS communication packet size that can be used for reception.
Max Receive PDU Size (L) value
PDU size
Types of services that can be used.
Features Supported value
Features Supported octet string
Station A
MaxSendPDUSize
(Low Priority)
MaxReceivePDUSize
(Low Priority)
Feature Supported (n)th bit
Feature Supported (m+8)th bit
(0 ≤ m ≤ 8)
≤
≥
≤
≥
7-31
MELSEC-A
Station B
MaxReceivePDUSize
(Low Priority)
MaxSendPDUSize
(Low Priority)
Feature Supported (n+8)th bit
(0 ≤ n ≤ 8)
Feature Supported (m)th bit
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