ABB FPBA-01 PROFIBUS DP, Руководство пользователя

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134 Communication protocol
The default codes for the PPO types in the table above define data
consistency over the message as follows:
Data non-consistent over the entire message is also supported by
the FPBA-01 module. The cyclical frame types supported by the
module are defined in the GSD file.

Other SAPs for DP-V1 communication
Master
class Master
SAP Slave
SAP Short name Meaning
C1 51 51 Server SAP Read, Write, Alarm
C1 51 50 Alarm SAP Alarm
C2 50 49 Resource Mgmt.
SAP Req PDU
C2 50 48...0 Communication
SAP Abort, Read/Write,
Data_Transfer
C2 62 55 Set_Slave_Add Change Station
Address (C2 Master)
x x x x x x x x
Length of data
0000 = 1 byte per word
• • •
1111 = 16 bytes per word
MSB LSB
Input/Output
00 = Special format
01 = Input
10 = Output
11 = Input and output
0 = Byte
1 = Word
0 = Consistency of byte/word
1 = Consistency of entire length
For example, 11110001 = F1 = PPO3