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D1300M
Modbus Modules with Thermocouple Input
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The
D1300M Modbus ADC module converts thermocouple temperature sensor signals to digital information, linearizes the digital
data, scales the data and communicates the values to a host computer or
PLC. The data
values are transmitted in Modbus RTU protocol to a host computer via RS232 or
RS485
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Because
the Modbus protocol does not support Echoing the RS232 versions of D1000M
series are limited to one ADC per serial port.
Applications requiring more than one channel should use RS485.
The
D1300M Modbus series modules can also be mounted on a DIN-Rail using the MK-1
mounting kit.
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| Typical
Modbus RS232 Thermocouple Module |
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| Specifications: |
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Types:
J, K, T, E, R, S, B, C |
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Accuracy
(errors from all sources) from 0 to +40C ambient: +/-1deg C max (J,K,T,E
types). +/-2.5 deg C max for (R,S,B,C types). |
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Resolution:
1 degree C. |
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Common
mode rejection: 100db at 50/60 Hz. |
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Lead
resistance effect: <20uV per 350 ohms. |
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Input
burnout protection to 250 VAC. |
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Input
impedance: 100 megohm min. |
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Three
open-collector digital outputs. |
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Two
digital inputs. |
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Open
thermocouple indication. |
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Thermocouple
Measurement Ranges: |
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J= -200 to +760
C |
B=
0 to +1820 C |
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K= -150 to +1250
C |
S=
0 to +1750 C |
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T= -200 to +400
C |
R=
0 to +1750 C |
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E= -100 to +1000
C |
C=
0 to +2315 C |
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