S+S Regeltechnik THERMASGARD RTM1-Modbus Notice D'instruction page 10

G
®
THERMASGARD
Calibratable room temperature
RTM1- Modbus with Modbus connection, with ⁄ without optional display for displaying
the actual temperature, in an elegant enclosure made of plastic, with snap-on lid,
base with 4-hole attachment, for installation on vertically or horizontally installed
in-wall flush boxes, with predetermined breaking point for on-wall cable entry.
The calibrateable room operating sensor measures the temperature of non-
aggressive gases, particularly air. In this case, a setpoint potentiometer is available
as an operating element. For temperature/humidity/dew point or setpoint readings,
optional devices with LCD displays for displaying readings are available. The displays
(LCD), as well as the retrieval of measurement and control values, are triggered via
the Modbus interface.
TECHNICAL DATA
Voltage supply: 24 V AC (± 20 %) and 15...36 V DC (± 10 %)
Power consumption: < 1.0 VA ⁄ 24 V DC; < 2.2 VA ⁄ 24 V AC
Sensor: digital humidity sensor with integrated temperature
sensor, low hysteresis, high long-term stability
Data points: temperature, relative humidity, dew point,
setpoint potentiometer
Measuring range: 0...+50 °C
Temperature deviation: ± 0.5 K at +20 °C
Zero point offset: ± 10 °C, adjustable by potentiometer
Ambient temperature: storage –35...+85 °C;
operation 0...+50 °C
Medium: clean air and non-aggressive, non-combustible gases
Bus parameters: can be configured and addressed via DIP switches
in the absence of current delivery (under currentless
conditions)
Bus interface: RS 485, galvanically isolated, Bus termination
activatable via DIP switches. Up to 32 devices possible
in one segment. In case of a greater number of devices,
RS485 transceivers must be used.
Bus protocol: Modbus (RTU mode), address range 0...247 selectable
Baud rate: 9600, 19200, 38400 Baud
Status indicator: LED green = Telegram valid
LED red
Signal filtering: 4 s / 32 s
Process connection: by screws
Enclosure: plastic, material ABS,
colour pure white (similar to RAL 9010)
Dimensions: 85 x 85 x 27 mm (Baldur 1)
Installation: wall mounting or on in-wall flush box, Ø 55 mm, base
with 4 holes, for attachment to vertically or horizontally
installed in-wall flush boxes for rear cable entry, with
predetermined breaking point for cable entry from
top ⁄ bottom in case of plain on-wall installation
Permissible air humidity: < 95 % r. H., non-precipitating air
Protection class: III (according to EN 60 730)
Protection type: IP 30 (according to EN 60 529)
Standards: CE conformity, electromagnetic compatibility according to EN 61326,
according to EMC Directive 2004 ⁄ 108 ⁄ EC
Optional: two-line display with illumination, programmable, cutout approx. 36 x 15 mm (W x H),
for displaying the actual temperature or an individually programmable display value
(The Modbus interface allows the display to be individually configured in the 7-segment area
and in the dot-matrix area.)
THERMASGARD ® RTM 1 - Modbus – Room operating temperature sensor
Type ⁄ WG01
RTM 1 - Modbus
R T M1- M O D B U S
R T M1- M O D B U S D I S P L AY
RTM 1 - P - Modbus
R T M1- M O D B U S P
R T M1- M O D B U S P D I S P L AY
RTM 1- Modbus
measuring transducer
1 2
= Telegram error
5 4 3
Sensor Output
digital Modbus
digital Modbus
digital Modbus
digital Modbus
THERMASGARD ®
Schematic diagram
Plug for
display
ON DIP A
1 2 3 4 5 6 7 8
ON DIP B
1 2 3 4 5 6
offset
Potentio-
meter
Zero point calibration
The sensors are preset and calibrated at the factory.
Adjustment is possible using the two offset potentio -
meters. Range of adjustment: approx. ± 10 °C.
Equipment
–
–
potentiometer
potentiometer
10
1 2
ON
1 2 3 4 5 6 7 8
ON DIP B
1 2 3 4 5 6
offset
5 4 3
DIP A: Bus address
DIP B: Bus parameters
(Baud rate, parity ...)
Telegram indicator
Reception (LED green)
Error (LED red)
LED (internal status)
Offset correction
temperature: ± 10°C
Plug for display
contact is
on the right side
Display Art. no.
IP 30
1101-42A6-0000-000
■ 1101-42A6-2000-000
IP 30
1101-42A6-0001-005
■ 1101-42A6-2001-005
Rev. 2016 - V20 GB
RTM 1- Modbus
Plug for
display
DIP A
Potentio-
meter