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8.04 Tecweigh Protocol
There are two different approaches that serial users can employ for the following Remote
Calibration Section (8.05).
The Protocol Parameter (Section 6.02.45) permits two selections, they are TEC STD and TEC
OLD. The differences between these two styles, detailed in section 8.05 below, gives the user
more secure communications when set to TEC STD, and historical commands when set to TEC
OLD. Users with existing installations should use the TEC OLD version to avoid programming
changes, and new installations should use the new TEC STD version for a higher level of
security to prevent false commands from being accepted by the WP20.
8.05 Remote Calibration (see preceding section 8.04)
There are four commands that can be sent to the WP20 for Remote Calibration. Note that no data
is returned after calibration commands are sent. The characters are ASCII. Use the following
format to send the WP20 Remote Calibration commands:
[Station ID] [Command] [Carriage Return].
TEC STD
Command
Action
=R
Resets the TOTAL display
=Z
Starts an AUTO ZERO Cycle
=S
Starts an AUTO SPAN Cycle
=C
Cancels an AUTO ZERO or AUTO SPAN Cycle
Example: To start an AUTO SPAN cycle at Station G, send the following command:
[ Station ID ] [ Command ] [ Carriage Return ]
G (one character) =S (two characters) ^M (one character)
TEC OLD
Command
Action
30
Resets the TOTAL display
31
Starts an AUTO ZERO Cycle
32
Starts an AUTO SPAN Cycle
33
Cancels an AUTO ZERO or AUTO SPAN Cycle
Example: To start an AUTO SPAN cycle at Station G, send the following command:
[ Station ID ] [ Command ] [ Carriage Return ]
G (one character) 32 (two characters) ^M (one character)
Be careful not to send serial commands when there is someone working at that station. Serial
communications should only be done after the station is completely set up, calibrated, and in Run
Mode. Sending commands while in Program Mode could cause conflicts and corrupt data. The
WP20 ignores commands that it does not recognize and only detects and acknowledges a
framing error.
Содержание Tecweigh 20
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Страница 10: ... 9 2 09 I O Quick Reference Guide ...
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Страница 24: ... 23 4 03 WY15 and WY25 Scale Wiring load cells ...
Страница 25: ... 24 4 04 HY15 and HY25 Field Wiring ...
Страница 26: ... 25 4 05 WY10 WY10HD and WY20 Scale Wiring LVDTs ...
Страница 27: ... 26 4 06 Chart Recorder Data Logger using the 4 20 ma output ...
Страница 28: ... 27 4 07 Chart Recorder Data Logger using the HFR output ...
Страница 29: ... 28 4 08 Remote Rate Total Display 4 09 Remote Tons Counter ...
Страница 30: ... 29 4 10 Radio Transceivers Local Scale Remote Processor ...
Страница 31: ... 30 4 11 Radio Transceivers Local Processor Remote PLC PC or Remote Display ...
Страница 32: ... 31 4 12 Radio Transceivers Local DC Generator Remote Processor ...
Страница 33: ... 32 4 13 Radio Transceivers Local DC Generator and Processor ...
Страница 34: ... 33 4 14 Multiple Processors to Tecweigh Multi Scale Display MSD ...
Страница 35: ... 34 4 15 Interposing Relay External 120 vac Power 4 16 Interposing Relay Internal 30 vdc Power ...
Страница 61: ... 60 SC300 PCB WY15 and WY25 SC400 PCB WY10 and WY20 ...
Страница 71: ... 70 10 01 WY10 Dimensions CHAPTER 10 DIMENSIONS ...
Страница 72: ... 71 10 02 WY10 HD Heavy Duty Dimensions ...
Страница 73: ... 72 10 03 WY15 Dimensions ...
Страница 74: ... 73 10 04 WY20 Dimensions ...
Страница 75: ... 74 10 05 WY25 Dimensions ...
Страница 76: ... 75 10 06 HY15 and 25 Dimensions ...