Rockwell Automation 1790P-4R0 CompactBlock LDX I/O RTD/Resistance Input Module - Manual (Page 39)

Publication 1790-UM002A-EN-P
Module Data, Status, and Channel Configuration for DeviceNet 3-9
Determining Module
Update Time The module update time is defined as the time required for the module to
sample and convert the input signals. The module sequentially samples
the channels in a continuous loop. Module update time is dependent on
the number of input channels and the input filter selection.
The fastest update time occurs with the 500Hz filter enabled. The
following table shows update times for all filter frequencies.
DeviceNet RTD/
Resistance Module
(1790D-4R0/T4R0) Configuring 1790D-4R0/T4R0 RTD/resistance modules is as easy as
pointing and clicking. RSNetWorx™ lets you simply identify the network
and configure the I/O modules with easy-to-use Electronic Data Sheets
(EDS) files - just point to the field and click on your selection.
To obtain the EDS files you need to configure the modules, go to the
following website: http:/www.ab.com/networks/eds.
EDS files for blocks with matching catalog numbers (for D-Shell and
terminal block versions) are the same. Thus, on the website or in
RSNetWorx for DeviceNet, there may be only one catalog number listed
for both versions.
When using 3rd party configuration software, simply load the EDS files
into the software and follow the vendor’s instructions.
The following example takes you through configuring your RTD/
resistance module with RSNetWorx for DeviceNet, version 3.00 or later.
Table 3.8 Module Update Time
Filter
Frequency Module Update Time
10 Hz 2.2 seconds
25 Hz 840 milliseconds
50 Hz 420 milliseconds
60 Hz 348 milliseconds
100 Hz 224 milliseconds
250 Hz 88 milliseconds
500 Hz 48 milliseconds
NOTE
Refer to Appendix C to configure the 1790P-T4R0
PROFIBUS module.