Module slots
Connection diagram
CALEC
ST II is equipped with 2 separate slots for optional communication or
®
function modules. Depending on the equipment fitted to the device, these 2 slots
provide various connection options on outputs #1A, #1B and #2A. The connection
diagram and the terminal numbers shows the optional communication or function
modules which are fitted to the device.
Function overview of outputs #1A, #1B and #2A
Function
M-Bus
Modbus RTU (RS 485)
BACnet MS/TP (RS 485)
N2Open (RS 485)
LON TP/FT-10
4 - 20 mA / 0 - 20 mA
4 - 20 mA / 0 - 20 mA
64
Sample connection diagram:
Analogue outputs in socket #1 and M-Bus in
socket #2.
Terminals
24 - 25
90a - 91b
90a - 91b
90a - 91b
90a - 97b
70 - 71
72 - 73
Available on output
#2A and / or #1A
#2A and / or #1A
#2A and / or #1A
#2A and / or #1A
#2A and / or #1A
#1A and / or #2A
#1B
CALEC
ST II
®