prw2101a0600p_01
11 / 105
12. Read device message
This reads the 32 character message stored in the non-volatile memory of the device (e.g. T18 35% HCL TANK)
13. Read the 8 character ”short TAG”, 16 character descriptor and date
14. Read PV sensor information
15. Read output information
16. Read final assembly number
17. Write 32 character message
18. Write the 8 character ”short TAG”, 16 character descriptor and date
19. Write final assembly number
1.1.4.2 General commands
These commands do not need to be understood by all devices. If not understood, nothing happpens, however, if understood, then it must be interpreted according to
the standard. Many such commands exist, the most important ones are the following:
34: damping (writing settling time)
35: measurement range (writing of upper and lower limits, and/or dimension)
36: Upper limit now! (sets the upper limit – 20 mA)
37: Lower limit now! (sets the lower limit – 4 mA)
40: setting constant current output (can be very useful during testing)
41: Device self-test, sends back the result.
42: Master reset (setting factory default)
50: Reading assignment status of the primary variable (PV), the secondary variable (SV), the tertiary variable (TV) and the quaternary variable (QV). This can
not always be read unambiguously, in most cases it can be found in the manual of the device.
109: Switching „Burst” mode on and off.
1.1.4.3 Device –specific commands
These commands are specified by the manufacturer. A description of the commands can be found in the device manual.
To Next Page
Loading...