SBC PCD7.LR P5 Series Manual page 96

Saia-Burgess Controls AG
PCD7.LRxx-P5 read Modbus values from PCD1/2/3
PCD 1/2/3
Media mapping on the PCD 1/2/3 acting as
Modbus server
PCD 1/2/3
Register
Number on
the IRM-P5
PCD Reg
PCD Reg+1
PCD Reg+2
PCD Reg+3
PCD Reg+4
PCD Reg+5
PCD Reg+6
PCD Reg+7
PCD Reg+8
PCD Reg+9
PCD Reg+10
PCD Reg+11
PCD Reg+12
Hardware manual PCD7.LRxx-PG5 room controller │ Document 27-653; version ENG07 │ 2019-03-21
PCD7.LRxx-P5
PCD7.LRxx-P5 acting as Modbus client, reading 16-bit or 32-bit values from the server.
Example: if client reads out 12 Modbus objects, where the content of the Modbus objects is
defined as
11112222 hex for HR0 / HR1,
33334444 hex for HR2 / HR3 ... as shown on the left side of the table.
Modbus Example for PCD7.LRxx-P5
Holding value stored Register Number
Register on the PCD
Number register of the
PCD 1/2/3
HR0 / 11112222
PCD Reg
HR1 hex
HR2 / 33334444
PCD Reg + 1
HR3 hex
HR4 / 55556666
PCD Reg + 2
HR5 hex
HR6 / 77778888
PCD Reg + 3
HR7 hex
HR8 / 9999AAAA
PCD Reg + 4
HR9 hex
HR10 / BBBBCCCC
PCD Reg + 5
HR11 hex
HR12 / DDDDEEEE
PCD Reg + 6
HR13 hex
HR14 / FFFF1111
PCD Reg + 7
HR15 hex
HR16 / 22223333
PCD Reg + 8
HR17 hex
HR18 / 44445555
PCD Reg + 9
HR19 hex
HR20 / 66667777
PCD Reg + 10
HR21 hex
HR22 / 88889999
PCD Reg +11
HR23 hex
HR24 / AAAABBBB
PCD Reg + 12
HR25 hex
Modbus on PCD7.LRxx-P5 RS-485 interfaces
PCD7.LRxx-P5 PCD7.LRxx-P5 PCD7.Lxx-P5
Register con- Register con- Register content if
tent if value is tent if value is value is stored as
stored as 16 bit stored as 16 bit 32 bit
unsigned signed
Modbus object Modbus object Modbus object
number = PCD number = PCD range 10001 and
register number register number higher must be
used on the PCD
1/2/3.
To access register
600, it is neces-
sary to access the
Modbus object
11201
(2 x 600 + 10001)
00002222 00002222
hex hex
00004444 00004444
hex hex
00006666 00006666
hex hex
00008888 FFFF8888
hex hex
0000AAAA FFFFAAAA
hex hex
0000CCCC FFFFCCCC
hex hex
0000EEEE FFFFEEEE
hex hex
00001111 00001111
hex hex
00003333 00003333
hex hex
00005555 00005555
hex hex
00007777 00007777
hex hex
00009999 FFFF9999
hex hex
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Communication
PCD7.LRxx-P5
Register content if
value is stored as
32 bit swapped
Modbus object
range 10001 and
higher must be
used on the PCD
1/2/3.
To access register
600, it is neces-
sary to access the
Modbus object
11201
(2 x 600 + 10001)
11112222 22221111
hex hex
33334444 44443333
hex hex
55556666 66665555
hex hex
77778888 88887777
hex hex
9999AAAA AAAA9999
hex hex
BBBBCCCC CCCCBBBB
hex hex
DDDDEEEE EEEEDDDD
hex hex
FFFF1111 1111FFFF
hex hex
22223333 33332222
hex hex
44445555 55554444
hex hex
66667777 77776666
hex hex
88889999 99998888
hex hex
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