Communication Menu; Control; Starting Up The Machine; 42Am Air Heater Control - Carrier 42AM Regelungshandbuch

4 - GENERAL DESCRIPTION OF THE SCREENS

4.11 - Communication menu

SUPERVISION g1
Protocol ---------
Speed ----- bds
Address ----
Parity -----
Stop bits -
pLAN NETWORK pL1
pCo3 address 01
When the system starts up, the pLAN network may encounter a number of problems (card fault and terminal start-up) caused by
incorrect connections or a wrong address. The state of the pLAN network can be displayed in real time on this special mask in order
to identify which devices (controller or terminal) are correctly connected and addressed.
Network addresses 1 to 32 are displayed. The small rectangles
If the symbols flash, the pLAN may be unstable or, more likely, two components share the same address.
The example indicates that the network is formed of 1 controller with the address 1 and 1 terminal with the address 17.

5 - CONTROL

5.1 - Starting up the machine

Switching from OFF/ON or ON/OFF is done locally by pressing the 2  and  keys on the display or via
the CMS. If using both modes, the last requested action is performed.

5.2 - 42AM air heater control:

5.2.1 - Selecting the operating type:
Parameter P112 is used to choose between the eco/comfort setpoints either by:
- Parameter P111 (local or CMS) or time schedule: the last order received (time schedule or parameter P111) is taken into account.
- The on/off input J4 DI6 only: depending on the input state (open=eco), the operation is eco or comfort
- J4 DI6 on-off input override: the setpoint or status is given by the time schedule or CMS, but the on/off input is used to force
setpoint to comfort mode: for example a presence detector is used to take priority over the CMS or time schedule.
Comfort
P122
Max. speed
P121
Min. speed
0%
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Level 1 access
Choice of the communication protocol with the CMS (MODBUS RTU, MODBUS TCP, BACNET IP)
Choice of communication protocol with the CMS (19200 mandatory for MODBUS TCP, BACNET IP)
Address of the controller on the communication network to the CMS
Parity: None, odd, even
Number of stop bits: 1 or 2
Level 1 access
Address of the controller on the pLAN communication network to the user terminal
pLAN network state
Heating operation
P130
Heating proportional
band
Heating setpoint
P152 or P153
represent the terminals and the large rectangles
Cooling operation
P135
Cooling proportional
band
Cooling setpoint
P150 or P151
, the controllers.
Room T°
37
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