CEL-MAR ADA-401WP, Руководство пользователя

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2.3. APPLICATION
ADA-401WP measurement module is ideal for applications involving:
- multi-point temperature registration and control,
- controlling of functioning of air-conditioning and heating
- temperature monitoring for HACCP norm,
- temperature monitoring in cereal silo, storehouses, cold stores, drying rooms,
- intelligent buildings.
2.4. ISOLATION
ADA-401WP has 2-way 3kV= galvanic isolation.
Fig 2. Isolation structure in ADA-401WP
3. INSTALLATION
This chapter will show how to use and connect ADA-401WP to computer, RS485/RS422 networks, 1-WIRE network and power
supply. In the purpose of minimization of disruptions from environment is being recommended to:
●
apply multipair type shielded cables, which shield can be connected to the earthing on one end of the cable,
●
arrange signal cables in the distance not shorter than 25 cm from powering cables.
●
apply cable for the power of adequate cross-section due to voltage drops for converter powering,
●
not supply converter from power circuit device that generates large impulse interference such as transmitters, contactors,
3.1. ASSEMBLING
ADA-401WP enclosure is adapted to assembly on TS-35 (DIN35) rail. To install should be mounted device on the rail, upper part of
the enclosure, then press bottom part to hear characteristic „Click” sound.
3.2. CONNECTION TO COMPUTER
Use a RS232 to RS485 converter (like ADA-I1040), or USB to RS485 (like ADA-I9140) to connect ADA-401WP module to computer.
Fig.3 and Fig.4 (below) shows example connection.
3.3. CONNECTION TO RS485 / RS422 NETWORK
It is possible to connect 32 devices to RS485 network according to EIA-485 standard with total cable length of 1200m. To extend
length of the network or increase the number of device should be used repeater or hub eg. ADA-4040, ADA-4044H.
Typical connections of ADA-401WP to RS485 network are shown on figure below.
Fig 3. Example connection to RS485 4-wire network
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ADA-401WP
POWER SUPPLY
10 - 30VDC
1-WIRE RS485/RS422
2-WAY ISOLATION
(5) GND
GND
(2) Rx
(3) Tx
ADA-401WP
RS232
Connector
RS485/RS422
Connector
RS485(4W) Bus
RS232
Connector
PC ADA-I1040
ADA-401WP ADA-401WP
GND (5)
Tx (2)
Rx (3)
Rt
Rt
Rx+
Rx-
Tx+/ A
Tx-/ B