Serial interface timing, Figure 17, Timing for rs-232, rs-485, and rs-422 interfaces – Vaisala WMT700 User Manual

Page 51

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Chapter 3 _______________________________________________________ Functional Description

Serial Interface Timing

Depending on the selected interface, the serial data interface
timing is as follows:

- Interfaces RS-232, RS-485, RS-422: Figure 17 below shows

timing when WMT700 is polled in the measurement mode.

1002-050

Figure 17

Timing for RS-232, RS-485, and RS-422
Interfaces

The response delay t2 is user-configurable. In the
configuration mode, some commands have a longer response
delay.

- SDI-12 interface: The timing is compliant with the SDI-12

standard. For the complete SDI-12 standard text, see the
SDI-12 website at

www.sdi-12.org

.

VAISALA ________________________________________________________________________ 49

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