Honeywell Experion PKS, Руководство пользователя

Страница: 163 / 270

• In the Channel Number column, the channel number is automatically updated based on the number of
channels configured for the selected module.
For example, if the number of channels configured for a module is 4, then this column lists the channel
numbers as 0, 1, 2, and 3.
• In the AI Sensor Type column, select the sensor type supported for the AI module.
This parameter is available for configuration only when you select the PDC type as AI . Otherwise, this
parameter is disabled. The possible values are Unipolar , Bipolar , and Temperature Unit .
– When you select the sensor types as Unipolar or Bipolar , the values of the CHHIGHRANGE and
CHLOWRANGE parameters are updated based on their channel high and low values.
– When you select the sensor type as Temperature Unit , you must enter the channel high range and low
range manually.
The channel low range must be less than the channel high range. If the channel low range is greater than
or equal to the channel high range, the error message "RangeorLimitCrossover" appears during the load
of the DSB block. In addition, the PDC will go into the "Config Load Fail" state, and the DSB will go
into the "Configuration Error" state.
• In the AO Sensor Type column, select the sensor type supported for the AO module.
This parameter is available for configuration only when you select the PDC type as AO . Otherwise, this
parameter is disabled. The possible values are Unipolar and Bipolar .
– When you select the sensor types as Unipolar or Bipolar , the values of the CHHIGHRANGE and
CHLOWRANGE parameters are updated based on their channel high and low values.
• With R410, you can modify the values of the following parameters even after a PDC is associated and
connected to a PIOMB. However, you must ensure that you reload both the DSB and the PIOMB after
modifying the parameter value. If you do not reload both the DSB and the PIOMB, there may be a break in
the connection between the DSB and the PIOMB.
– Number of Channels (NUMCHANNEL) - You can increase or decrease the Number of Channels
parameter value. There is no restriction on increasing the number of channels. However, if you want to
decrease the number of channels, you can decrease the number only until the last assigned channel
number. For example, consider a scenario where you have entered the number of channels of a PDC as
10. However, you have assigned only 6 channels (channel 0 through channel 5) to the PROFIBUS
channels. In this scenario, you can reduce the Number of Channels value to 6. If you try to reduce the
Number of Channels value to 5 or less an error message appears.
– Channel Description (CHDESCRIPTION)
– Channel Low Range (CHLOWRANGE)
– Channel High Range (CHHIGHRANGE)
– AI Sensor Type (AISENSORTYPE)
– AO Sensor Type (AOSENSORTYPE)
7.16.7 Turck Excom DSB specific PDC configuration guidelines
The following list summarizes the Turck Excom DSB specific PDC configuration guidelines that you must
remember while configuring the Turck Excom DSB PDC.
• The number of PDCs supported by the Turck Excom DSB is 34.
• The PDC configuration must be done through
IOM configuration tab.
• The number of channels are automatically updated based on the module selected except for the DM80Ex
digital module.
• If you have selected the DM80Ex digital module, in the Number of Channels column, you must manually
enter the number of channels for this module. You must enter a number from 1 through 8 for this module.
7 DEVICE SUPPORT BLOCK (DSB)
163