S+S Regeltechnik THERMASGARD ALTM 2 - Modbus [10/32] On dipb

S+S Regeltechnik THERMASGARD ALTM 2 - Modbus [10/32] On dipb
10
Schematic diagram
THERMASGARD
®
MODBUS
G
THERMASGARD
®
MODBUS
| Configuration
1 2 3 4 5
12345678
ON DIPA
123456
ON DIPB
mode
offset
Plug for
display
–UB GND
Shielding
RS485 Modbus A
RS485 Modbus B
+UB 24V AC/DC
Plug for display
contact is
on the right side
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
1 2 3 4 5
12345678
ON DIPA
123456
ON DIPB
mode
offset
Plug for
display
–UB GND
Shielding
RS485 Modbus A
RS485 Modbus B
+UB 24V AC/DC
Plug for display
contact is
on the right side
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
Calibrateable temperature sensors with Modbus connection.
For more information, please refer to device-specific instructions.
TECHNICAL DATA
Voltage supply: 24 V AC (± 20 %) and
15...36 V DC (± 10 %)
Power consumption: < 1 VA ⁄ 24 V DC
< 2.2 VA ⁄ 24 V AC
Sensor: Pt1000 (according to DIN EN 60751, class B)
Measuring range: – 50...+ 150 °C
depending on the type of device
Temperature deviation: ± 0.2 K at +25 °C
Zero point offset: ± 10 °C
Ambient temperature: – 30...+ 70 °C
Medium: clean air and
non-aggressive
, non-combustible gases
Bus parameters:
In the absence of current delivery
(under currentless conditions)
can be
configured and addressed via DIP switch!
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 = Telegram error
Error detection: sensor breakage, sensor short circuit
Signal filtering: 0.3 s / 1 s / 10 s
Display: The Modbus interface allows the display screen to
be individually configured, both in the 7 and 14
segment range and in the dot-matrix range.
Display - individually
programmable
Zero point calibration
The sensors are preset and calibrated at the factory.
Adjustment is possible using the two offset
potentiometers. Range of adjustment: approx. ± 10 °C.

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