91
8. FAQs frequently asked questions
Q1: What is the maximum scale low and scale high values we can set in the recorder for the
analog inputs and outputs?
A1: The minimum low scales of analog input are various -19999, - 1999.9, - 199.99, - 19.999, -
1.9999,
-0.19999 depending on the position of the decimal point
The maximum high scales of analog input are various 45536, 4553.6, 455.36, 45.536,
4.5536, 0.45536 depending on the position of the decimal point
The minimum low scales of Math input are various -32768, -3276.8, -327.68, -32.768, -
3.2768, -0.32768 depending on the position of the decimal point
The maximum high scales of Math input are various 32767, 3276.7, 327.67, 32.767, 3.2767,
0.32767 depending on the position of the decimal point
Q2: What is the maximum distance between PC and Recorder for Ethernet communication?
A2: The distance is limited in 100 meters. If it is farer than that, then you can use Hub or
networking bridge to strengthen the signal.
Q3: What is the maximum distance if PC is accessing data from recorder on wireless network
through Ethernet protocol?
A3: Maximum distance should be within 30 meters. Also make sure that there is no obstacles/
HT cables between PC and recorder to avoid communication errors. Also Noise could
effect the wireless communication at the factory floor.
Q4: Is there any battery available inside the recorder, which needs to be changed frequently?
A4: The lithium battery Toshiba CR2032 3.0V/220mAH can last for many years. It can be
replaced by local sourcing if Real Time Clock is not working properly.
Q5: What is the accuracy of Real Time Clock in the recorder?
A5: The crystal oscillator used in recorder could have a lag time in a few seconds each week.
Press Synchronization button in PC software Observer II to synchronize the time between
PC and the recorder. The temperature inside the housing has an effect on accuracy of
Real Time Clock of crystal oscillator.
Temperature range Time lag per month
10 ~ 40
˚
C
18 sec.
0 or 50
˚
C 52 sec.
-10 or 60
˚
C
107 sec.
Содержание WH18/06
Страница 1: ...User Manual Paperless Recorder WH18 06 15th Edition 03 2008 ...
Страница 17: ...17 Figure 2 6 Figure 2 7 Figure 2 8 ...
Страница 19: ...19 Figure 2 10 Figure 2 11 ...
Страница 25: ...25 Digital input card DI181 Figure 2 21 Analog output card AO183I AO183V Figure 2 22 ...
Страница 26: ...26 24 VDC auxiliary power supply card AP181 Figure 2 23 2 5 RS 232 RS 422 RS 485 wiring Figure 2 24 ...
Страница 27: ...27 Figure 2 25 Figure 2 26 ...
Страница 70: ...70 Make sure that RS 232 communication setting at the recorder and PC are equal ...
Страница 87: ...87 7 Trouble shooting ...
Страница 88: ...88 ...
Страница 89: ...89 ...
Страница 90: ...90 ...