Hardware manual PCD7.LRxx-PG5 room controller │ Document 27-653; version ENG07 │ 2019-03-21
Saia-Burgess Controls AG
LEDs/operating states
Room controller/CPU
3-17
3
3.8.2 Data types/value ranges
Type Area Remarks
Integer -2,147,483,648 to
+2,147,483,647
Format: Decimal, binary, BCD or
hexadecimal
IEEE single precision ±1.401 × 10
-45
to 3.403 × 10
38
3.8.3 Resource elements
Type Number Addresses Remarks
Flags (1 bit) 4050 F 0…4049
Registers (32 bit) 4050 R 0…4049
Text/data blocks 100 X or
DB 0...99
For text and DB
Timer/counter (31 bit) 400
1)
T/C 0…399 The timer and counter breakdown
periodically counted down by the
operating system; the base time
unit can be set between 10 ms and
10 seconds.
Constants with media code K any 0...16,383 These values can be used in in-
structions in place of registers
Constants without media code any -2,147,483,648 to
+2,147,483,647
Can only be loaded in a register
with an LD command and cannot
be used in instructions in place of
registers.
1)
-
sary CPU loads
3.8.4 RTC/internal hardware clock
clock (RTC) is ensured by a supercap for max. 72 h.
The PCD7.LRxx-P5 room controllers are maintenance-free and do not need any
batteries.
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