Hardware manual PCD7.LRxx-PG5 room controller │ Document 27-653; version ENG07 │ 2019-03-21
Saia-Burgess Controls AG
Communication
5
5-12
RS-485 interfaces (ports 0 + 1) in general
Enabling the manual operating level for the E-Line modules would require
additional telegrams, thus limiting the maximum number of E-Line modules to two
to still be able to achieve the 250 ms response times.
If manual commands are nevertheless required, “read cyclically” should be config
-
ured instead of “continuous”.
Performance example:
Application: with two rooms for fan coil application and four on/off lighting groups
and four blinds with slat adjustment and disabled manual operating level
2
HVAC room template applications in PCD7.LRxx-P5 room controller
1
PCD1.E1000-A10 with four inputs for light on/off switch and eight
inputs for two rocker switches for blinds
1
PCD1.A2000-A20 with four relays for light on/off and two relays for
one set of blinds
1
PCD1.A2000-A20 with six relays for three blinds
1
PCD1.B5000-A20 with three relays for second fan coil
In this configuration, the PCD7.LRxx-P5 room controller can process 16 cycles/
second, and a response time of max. 250 ms between the press of a switch and
the output switching can still be achieved.
If more lighting or blind outputs are required, another option would be to use the
programmable E-Line modules for lighting and blind switching and to use their
inputs for connecting the switches/buttons.
It is not a good idea to establish a master/slave connection between two (or more)
PCD7.LRxx-P5 controllers for lighting or blind outputs. The response time be-
tween pressing the switch on one controller and an output’s response on another
controller (and its connected E-Line RIO) would usually be greater than 250 ms,
due to the communication cycle time.
