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ADVANCED PROGRAMMING MENU
Setting the parameter F = 4 is possible programming independent thresholds P, A,
L, H for each channel.
Appears in the word CH(n) with n. (1-4), using UP/DOWN you need to decide
whether to make the channel active or not, and if so, are asked to introduce the
thresholds P and A.
Appears below the written FAn, using the UP/DOWN you need to decide if you want
to control the ventilation on that channel or not, if so, is also asked to introduce the
thresholds L and H of ventilation, in the case of exclusion will be proposed the
configuration of the next channel.
The steps will repeat for all available channels.
(CT-4/RS485 – CT-4/20MA)
Parameter S (1 to 4) will be requested. Use UP/DOWN to select the communication
speed of the Modbus RTU protocol: S=1, 9600 bps; S=2, 19200 bps (default); S=3,
31250 bps; S=4, 38400 bps.
After confirmation, switch to the P parameter (1 to 3) using the UP/DOWN keys to
select the parity in the communication control, P=1 parity NONE, P=2 parity EVEN,
P=3 parity ODD. Finally the last communication parameter S (from 1 to 3) for
choosing the number of stop bits; S=1 No bit, S=2 1 stop bit, S=3 2 stop bits.
The letter A then appears. Use UP/DOWN to select the address of MODBUS-RTU
(1-255) node.
The other non-modifiable communication parameters are: data bit=8.
(CT-4/20MA)
Then the letter d appears for the choice of channel output 4-20 mA – 0-20 mA and
can assume the following values:
• d=1 fixed output temperature channel 1
• d=2 fixed output temperature channel 2
• d=3 fixed output temperature channel 3
• d=4 fixed output temperature channel 4
• d=5 hottest channel output (including active ones) the default of the control unit
• d=6 Output in scan mode between active channels
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