User Manual VS2k-UMB / VS20k-UMB
V 2.3 / 28.01.2020
13
Chapter 10 Communication
Response:
‘$’_<ID>
5
_‚M’_<channel>
5
_<value>
5
CR
<ID>
5
Device address (5-point decimal with leading noughts)
<channel>
5
Indicates the channel number (5-point decimal with leading noughts)
<value>
5
Measurement value (5-point decimal with leading noughts); a value scaled to 0
– 65520d. From 65521d – 65535d various error codes are defined.
Example:
Request:
&_12289_M_00601
With this request, channel 601 of the device with address 12289 (VS2k-UMB with the device
ID 0001) is polled.
Response: $_12289_M_00601_03456
With the scaling for visibility the following calculation then results:
0d
corresponds to 0 metres
65520d
corresponds to 32760 metres
03456d
corresponds to 32760 / 65520 * 03456 = 1728 metres
10.3 Channel assignment for data requests
The following channel assignment is valid for online data request in binary protocol. In the
ASCII protocol all channels are transmitted in the mapping standard.
Channel
Data type
Measurement unit
Measurement rante
Description
Current Average
Visibility
600
650
float
in metres
10
– 1000 Meter
601
651
float
in metres
10
– 2000 Meter
602
652
float
in kilometres
0.01
– 1.000 km
603
653
float
in kilometres
0.01
– 2.000 km
604
654
float
in feet
32
– 3000 feet
605
655
float
in feet
32
– 6500 feet
606
656
float
in miles
0.006
– 0.600 miles
607
657
float
in miles
0.006
– 1.200 miles
608
658
unsigned
short
in the mapping
standard
20
– 4000
609
659
float
m
10
– 20000
610
660
float
km
0.01
– 20.00
611
661
float
ft
32
– 65000 ft
612
662
float
miles
0.006
– 12.400 miles
Ambient temperature
100
150
float
in °C
-40 - +80 °C
101
151
in °F
-40 - +176 °F
102
152
unsigned
short
in the mapping
standard
Service
4000
---
unsigned char logical
0 - 100.255
Pollution degree sender
4001
---
unsigned char logical
0 - 100.255
Pollution degree receiver
