Chapter 6 – Communication
6-4 NPBA-12 Installation and Start-up Guide
SAP 128
(Data_Exchange)
Allows the master to send output data to a slave station and to
simultaneously request input data from the same station.
7
Ext_Diag_Data
The number of bytes reserved for Extended Diagnosis (including this byte)
Fixed to 2
8
Ext_Diag_Data
0 = OK
4 = Actual value channel is not updated (last value retained)
Outp_Data (Output Data)
Type: Octet String - Length: 0 to 32 (depending on the selected PPO Type)
Inp_Data (Input Data)
Type: Octet String - Length: 0 to 32 (depending on the selected PPO Type)
Diag_Data (Diagnostic Data)
Type: Octet String - Length: 6 (Standard) + 2 (Extended Diagnosis)
Byte Description
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