Allen-Bradley CompactBlock LDX 1790D-4T0, Руководство пользователя

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Publication 1790-UM003A-EN-P
3-14 Module Data, Status, and Channel Configuration for DeviceNet
Total Error
As an example, a B Type thermocouple operating at 100°C with 1000
ohms of lead wire, internal CJC and 10Hz filter enabled, in an ambient
temperature of 30 to 50°C, is accurate to within:
Configuring DeviceNet
Thermocouple/mV
Module
(1790D-4T0/T4T0)
Configuring 1790D-4T0/T4T0 thermocouple/mV 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
thermocouple/mV module with RSNetWorx for DeviceNet, version 3.00 or
later.
Refer to Appendix C to configure the 1790P-T4T0 PROFIBUS module.
Table 3.12 Example Error Calculation
Error Factor From Error
Module & Temperature Table 3.9 4.2°C
Thermocouple Table 3.10 .005 x 1000°C = 5.0°C
Lead Wire Table 3.11 .0004 x 1000°C = 0.4°C
TOTAL ERROR ±9.6°C