Communication interface PROFIBUS DP
Deutschmann Automation GmbH & Co. KG
44
Fieldbus-Gateway UNIGATE
®
CX C4Map - PROFIBUS V. 1.0
28.9.20
If the module detects, during the check, that the maximum permitted input/output data lengths
have been exceeded, it signals incorrect configuration to the Master during a subsequent diag-
nostic scan. It is then not ready for useful data communication.
14.5.2 Configuration telegram
Configuration byte 1
Octet 1
0
Configuration byte x
Octet 2
0
Structure of an octet in the configuration telegram:
Length of the data
00 = 1 byte / word
15 = 16 bytes / words
Input/output
00 = specific ID format
01 = input
10 = output
11 = input-output
0 = byte, 1 = word
0 = consistent over byte / word
1 = consistency total length
14.5.3 Diagnosis
Diagnostic data is high-priority data. The gateway runs an external diagnostic if it detects an
internal error.
Representation of the information in the external diagnostic byte:
The diagnostic information of a DP Slave consists of standard diagnostic information items
(6 bytes) and a user-specific diagnostic information item. (Error number)
Telegram for diagnostic request:
Octet 1
0
Diag.station does not exist (sets Master)
Diag.station not_ready: Slave is not ready for
data exchange
Summary of Contents for UNIGATE CX C4Map
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