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3
Device Description
3.1
Introduction
General
The JUMO digiLine CR in the version with an RS485 interface as a 5-pole M12 plug connector for con-
necting to a JUMO digiLine system. The device versions with an RS485 interface are used in the JUMO
digiLine mode with plug & play support on the JUMO AQUIS touch S/P or in the Modbus mode on the
JUMO mTRON T. Several sensors simultaneously transfer their measurement data to a master contin-
uously over the JUMO digiLine bus.
Installation and connection
The JUMO digiLine CR with RS485 interface is available in two device versions in terms of design type:
•
Device version as head transmitter: JUMO digiLine electronics and sensor form an integrated
module. The module is installed in a suitable fitting.
•
Device vesion with separate sensor: JUMO digiLine electronics and sensor are separate modules
and are connected to one another by a cable. The sensor is installed in a suitable fitting. The JUMO
digiLine electronics are mounted in the vicinity of the sensor using the supplied wall/pipe/DIN rail
holder.
If it becomes necessary to replace the sensor due to a defect or wear in the device version with a sep-
arate sensor, the JUMO digiLine electronics can be disconnected from the sensor and the intact compo-
nents reused. In the device version as head transmitter, disconnecting the sensor from the JUMO
digiLine electronics is not possible. The line and plug connectors of the JUMO digiLine CR provide pro-
tection type IP69K to prevent problems caused by ingress of moisture. Connecting to the bus is quick
and easy by inserting and attaching a preassembled cable (available from JUMO).
Configuration, parameterization and calibration
The JUMO digiLine CR with RS485 interface is normally configured, parameterized and calibrated via
the operating panel on the JUMO AQUIS touch S/P. The calibration, however, also be conveniently car-
ried out in the laboratory on a PC using the JUMO DSM-Software (Digital Sensor Management soft-
ware). It is only necessary to connect the device to the PC via its USB interface.
3.2
Block diagram
NOTE!
The USB interface and the RS485 interface on the JUMO digiLineCRcannot be operated simultaneously.
If the device is operated via the USB interface on the PC, the RS485 interface is inactive. The USB in-
terface as priority.
JUMO digiLine CR with RS485 interface (JUMO digiLine and Modbus)
Conductive
conductivity sensor
ϑ
JUMO digiLine CR
with
RS485 interface
for JUMO digiLine
3 Device Description
RS485 interface
for JUMO digiLine and
Modbus RTU
USB
for JUMO DSM software
11
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