7.10.2 Functions of Turck Excom DSB
Function
• Integrates the PROFIBUS DP slave devices to the Experion.
• Reads data from field devices and writes output into field devices depending on whether the I/O module is
an input module or an output module.
• Processes extended diagnostic data and updates channel status and sends notification based on the channel
status.
• Receives data from PIOMB and sends it to the device, if the PDC is connected to a PIOMB.
• Updates the PDC states.
Data Processing
See “Data processing” on page 118.
Status Diagnostics
The status information for the input data is a single bit, and is set to "Bad" when there is a loss of
communication between the PGM and the devices. By default, the status bit for analog inputs (AI, TI, and
Counter) is always the most significant bit within the value field. Counter inputs have an additional overflow
status bit.
The digital input modules can be configured to have status for the input channel data.
The output data has no status information.
All the channels of a PDC is set "Bad" when a module error exists. The following are the possible module error
types.
• Module not inserted
• Wrong module insertion
• Module error
For Turck Excom modules, the status bit in the data word is set in the event of a module error and the input
values are provided with substitute values.
The following table lists the minimum and maximum values that can be substituted for the input values in case
of a module error.
Attention
The input values are substituted with the minimum value, maximum value, or the last good value. This substitution is
based on the selection made for the Fail-safe mode, while configuring the I/O module during field network
configuration.
Signal Type
Minimum Value
Maximum Value
4 to 20 mA
3600
22000
0 to 20 mA
0
22000
0 to 10 Volts
0
10500
2 to 10 Volts
1800
10500
The channel status of all the modules can be obtained from the extended diagnostics information.
Tip
You can view the diagnosis and extended diagnosis of the devices online. For more information, see “Viewing the
slave device diagnosis” on page 100 and “Viewing the slave device's extended diagnosis” on page 101respectively.
7 DEVICE SUPPORT BLOCK (DSB)
144
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Summary of Contents for Experion PKS
Page 1: ...Experion PKS PROFIBUS Gateway Module User s Guide EPDOC XX88 en 431E June 2018 Release 431 ...
Page 8: ...CONTENTS 8 www honeywell com ...
Page 10: ...1 ABOUT THIS GUIDE 10 www honeywell com ...
Page 32: ...4 PROFIBUS GATEWAY MODULE PGM INSTALLATION 32 www honeywell com ...
Page 58: ...5 PROFIBUS GATEWAY MODULE PGM BLOCK 58 www honeywell com ...
Page 69: ...6 PROTOCOL BLOCK 69 ...
Page 103: ...5 Click OK 6 PROTOCOL BLOCK 103 ...
Page 110: ...6 PROTOCOL BLOCK 110 www honeywell com ...
Page 183: ...PDC Details tab Figure 6 Detail Display of PDC Details tab 7 DEVICE SUPPORT BLOCK DSB 183 ...
Page 186: ...7 DEVICE SUPPORT BLOCK DSB 186 www honeywell com ...
Page 231: ...9 PROFIBUS I O MODULE PIOMB FUNCTION BLOCK 231 ...
Page 232: ...9 PROFIBUS I O MODULE PIOMB FUNCTION BLOCK 232 www honeywell com ...
Page 236: ...10 PROFIBUS GATEWAY MODULE PGM CONFIGURATION EXAMPLE 236 www honeywell com ...
Page 264: ...13 PROFIBUS GATEWAY MODULE PGM TROUBLESHOOTING 264 www honeywell com ...