PAL-S08(4-Channel Temperature Input Module) |
Topic: PAL015
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Use the information in the table below to configure the parameters for the PAL S08 4-Channel Temperature Input Module.
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Setting |
Options |
How It Works |
Setting Description |
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Unit of Measurement |
Celsius (default) Fahrenheit |
Select between Celsius and Fahrenheit as the temperature format for the module. |
Module setting for temperature format. |
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Noise Suppression |
50Hz (default) 60Hz 50/60Hz slow 50/60Hz fast |
This is a module setting to choose between better filtering or faster update. |
Suppresses noise generated by main electrical supply. 50/60Hz slow delivers a high level of filtering, but updates the channels more slowly. 50/60Hz fast delivers less filtering, but updates the channels faster. |
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Sensor Type |
No sensor (default) Pt100 (TK=0.00385) Pt200 (TK=0.00385) Pt500 (TK=0.00385) Pt1000 (TK=0.00385) Pt100 (TK=0.00391) Pt200 (TK=0.00391) Pt500 (TK=0.00391) Pt1000 (TK=0.00391) Ni100 (TK=0.00617) Ni200 (TK=0.00617) Ni500 (TK=0.00617) Ni1000 (TK=0.00617) TC Type E TC Type J TC Type T TC Type K TC Type N TC Type S TC Type B TC Type R |
Choose between the different available RTD and Thermocouple types. Choose 0 to disable the channel. It is recommended to disable unused channels to save on processing time. |
Types of sensors and thermocouples the module supports. Set all unused channels to No sensor to save on processing time. |
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Connection Type |
2 wires (default) 3 wires 4 wires |
Selects the number of wires that the sensor has. This is primarily a factor for RTDs. |
Each channel provides 4 pins:
Choose the number of wires that the sensor requires for this channel. |
| Resolution Parameters |
CJC Compensation: External (default) Internal |
There is an internal CJC provided with the module, but in some applications with some sensor types (such as with the Pt1000), an external CJC may work better. |
There is an internal Cold Junction Compensation but it may be better to use an external CJC for cases where sudden temperature changes occur such as with the Pt1000. |
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Resolution: 0.1 (default) 0.01 |
Determines the resolution of the temperature reading and only applies to RTD sensors with temperature reading range of +/- 327 C. |
Choose the resolution of temperature display. This only applies to RTD sensors with temperature reading range of +/- 327 C. |
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Filter: Sync 3 (default) Sync 4 |
This digital filter setting works in conjunction with the module Noise Suppression filter. Sync4 provides greater filtering than Sync3, but has slower updates. |
The digital filter setting that works in conjunction with the Noise Suppression filter. Sync4 provides greater filtering but slower updates than Sync3. |
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Filter Diagnostic Parameters |
Filter setting: No Filter (default) 1 sample 2 samples 4 samples 8 samples 16 samples 32 samples 64 samples |
This option determines the number of samples that are averaged. The greater the value, the steadier the value but the slower the update. |
Filter Setting determines the number of samples that are acquired before updating the digital value. The higher the samples, the greater the filtering but slower updates. |
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Max Value Monitor: Disabled (default) Enabled |
An alarm option to inform the user when the temperature has exceeded a specified value. Enabling this option requires specifying the Maximum temperature value in the field below. If the temperature exceeds the value specified, it will be indicated in Input Byte 0 (status byte). The error data will be between 0xD4 – 0xD7. |
Max Value Monitor enables the Max Temperature monitor and will generate an alarm if the value is exceeded. Use the Max Temperature value setting if enabling this option. |
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Min Value Monitor: Disabled (default) Enabled |
An alarm option to inform the user when the temperature has dropped below a specified value. Enabling this option requires specifying the Minimum temperature value in the field below. If the temperature is below the value specified, it will be indicated in Input Byte 0 (status byte). The error data will be between 0xD4 – 0xD7. |
Min Value Monitor enables the Min Temperature monitor and will generate an alarm if the value is exceeded. Use the Min Temperature value setting if enabling this option. |
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Short Circuit detect: Disabled (default) Enabled |
An alarm option to inform the user that a channel has short circuited. If a short circuit is detected, it will be indicated in Input Byte 0 (status byte). The error data will be between 0xD4 – 0xD7. |
This option enables Short circuit detection for the channel. An alarm is generated if a short circuit is detected. |
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Open circuit detect: Disabled (default) Enabled |
An alarm option to inform the user that a channel has an open circuit. If an open circuit is detected, it will be indicated in Input Byte 0 (status byte). The error data will be between 0xD4 – 0xD7. |
This bit enables Open circuit detection for the channel. An alarm is generated if an open circuit is detected. |
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Minimum Temperature |
Valid range for each channel: -32768 to 32767 Default: 1 |
This value is used in conjunction with the Min Value Monitor to signal an alarm when the temperature has dropped below the value specified in this field. Valid range is -32768 to 32767. |
Minimum Temperature value used for the Minimum Temperature detection function. |
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Maximum Temperature |
Valid range for each channel: -32768 to 32767 Default: 127 |
This value is used in conjunction with the Max Value Monitor to signal an alarm when the temperature has risen above the value specified in this field. Valid range is -32768 to 32767. |
Maximum Temperature value used for the Maximum Temperature detection function. |