PRO AIR TPK 21 - General Coils Mapping; Project Specific Coils Mapping; Project Specific Holding Registers Mapping; Coil Address Memory Mapping

13.3.2. Project specific holding registers mapping
13.4. Coil address memory mapping
13.4.1. General Coils mapping
13.4.2. Project specific Coils mapping
109
n/a
NOTE: All coils are Boolean. They can be read-only, write-only or both. Read/write operation
can access only one coil at a time.
Legend
RW
Read and Write
RO
Read only
WO
Write only
Coil Number
Modbus coil adress
Description
Read/Writeability of coil
TPW MODBUS © SENNET CONTROL GmbH Page 10 of 11
Coil address memory mapping
NOTE: All coils are Boolean. They can be read-only, write-only or both. Read/write operation can access
only one coil at a time.
Legend
RW Read and write
Ro Read only
Wo Write only
5.1 General Coils mapping
Coil
Number
Modbus coil
address
Description
Read/Write-ability of
coil
Section 1: Termination resistor control
1
0
Termination Resistor 1
RW
…
16
15
last termination resistor coil - unimplemented
n/a
… and similar extension possible up to 16 RS485 termination resistors will be supported up to coil No. 16, for
each term resistor there is a coil mapped to it, where the data related to it can be accessed. Will return no reg if
termination resistor n is not supported
Section 2: Alarm control
21
20
Main Alarm Status - general (true if any main alarm is
active, false otherwise)
Ro
22
21
Pre Alarm Status - general (true if any pre alarm is
active, false otherwise)
Ro
23
22
Service Status (true if a service request has been
triggered, false otherwise)
Ro
24
23
Quit Main Alarm request (false has no effect)
Wo
25
24
Quit Pre Alarm request (false has no effect)
Wo
26
25
Quit Service request (false has no effect)
Wo
27
26
Silence Buzzer request (false has no effect)
Wo
…
40
39
last alarm section coil - unimplemented
n/a
Alarm functionality can be extended up to coil 40 (20 coils allocated)
n/a