This function returns the temperature reported by the channel as a floating point value.
float temperature = P1.readTemperature(1, 2); // Reads slot 1 channel 2 of the P1-04THM Note: While this module can be used for voltage inputs, you still need to use the "readTemperature" function as the voltage is reported as a floating point number.
Configuration Tool
Compatible Functions
Module Configuration and Status Tables
We recommend using the status functions and configuration tool. These tables are provided as additional reference.
Module Status Data
| Bytes | (MSB) 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 (LSB) | Description |
|---|---|---|---|---|---|---|---|---|---|
| Byte 0 | x | x | x | x | x | x | x | x | bits 0-7 are undefined |
| Byte 1 | x | x | x | x | x | x | x | x | bits 0-7 are undefined |
| Byte 2 | x | x | x | x | x | x | x | x | bits 0-7 are undefined |
| Byte 3 | x | x | x | x | x | 2 | x | 0 | bit 2 - Module not ready |
| bit 1 is undefined | |||||||||
| bit 0 - Module diagnostics failure | |||||||||
| Byte 4 | x | x | x | x | x | x | x | x | bits 0-7 are undefined |
| Byte 5 | x | x | x | x | 3 | 2 | 1 | 0 | bit 3 - Burnout error on channel 4 |
| bit 2 - Burnout error on channel 3 | |||||||||
| bit 1 - Burnout error on channel 2 | |||||||||
| bit 0 - Burnout error on channel 1 | |||||||||
| Byte 6 | x | x | x | x | x | x | x | x | bits 0-7 are undefined |
| Byte 7 | x | x | x | x | 3 | 2 | 1 | 0 | bit 3 - Under range error on channel 4 |
| bit 2 - Under range error on channel 3 | |||||||||
| bit 1 - Under range error on channel 2 | |||||||||
| bit 0 - Under range error on channel 1 | |||||||||
| Byte 8 | x | x | x | x | x | x | x | x | bits 0-7 are undefined |
| Byte 9 | x | x | x | x | x | x | x | x | bits 0-7 are undefined |
| Byte 10 | x | x | x | x | x | x | x | x | bits 0-7 are undefined |
| Byte 11 | x | x | x | x | 3 | 2 | 1 | 0 | bit 3 - Over range error on channel 4 |
| bit 2 - Over range error on channel 3 | |||||||||
| bit 1 - Over range error on channel 2 | |||||||||
| bit 0 - Over range error on channel 1 |
Module Configuration Data
Default values are in bold.
| Offset | Description | Allowable Values | Value Description |
|---|---|---|---|
| Bytes 00-01 | Channel enable | 0x4000 | Enable channel 1 |
| 0x4001 | Enable channels 1 and 2 | ||
| 0x4002 | Enable channels 1-3 | ||
| 0x4003 | Enable channels 1-4 | ||
| Bytes 02-03 | Burnout and Units | 0x6001 | Low side Burnout (min scale)/Temp in degrees C |
| 0x6003 | High side Burnout (max scale)/Temp in degrees C | ||
| 0x6005 | Low side Burnout (min scale)/Temp in degrees F | ||
| 0x6007 | High side Burnout (max scale)/Temp in degrees F | ||
| Bytes 04-05 | Channel 1 Range | 0x210r | |
| r = 0 | J | ||
| r = 1 | K | ||
| r = 2 | E | ||
| r = 3 | R | ||
| r = 4 | S | ||
| r = 5 | T | ||
| r = 6 | B | ||
| r = 7 | N | ||
| r = 8 | C | ||
| r = 9 | 0-39mV | ||
| r = A | +/-39mV | ||
| r = B | +/-78mV | ||
| r = C | 0-156mV | ||
| r = D | +/-156mV | ||
| r = E | 0-1.25V | ||
| Bytes 06-07 | Channel 2 Range | 0x220r | See CH1 |
| Bytes 08-09 | Channel 3 Range | 0x230r | See CH1 |
| Bytes 10-11 | Channel 4 Range | 0x240r | See CH1 |
| Bytes 12-13 | Reserved | 0x0000 | Reserved |
| Bytes 14-15 | Reserved | 0x0000 | Reserved |
| Bytes 16-17 | Reserved | 0x0000 | Reserved |
| Bytes 18-19 | Reserved | 0x0000 | Reserved |
Channels: 4
Thermocouples Types: J, E, K, R, S, T, B, N, and C.
Voltage Ranges: 0-39.0625 mVDC, ±39.0625 mVDC, ±78.125 mVDC, 0-156.25 mVDC, ±156.25 mVDC, 0-1250
mVDC.
Resolution: Temperature: ±0.1 °C or °F Voltage: 16 bit (Formatted as a float)
Example: ReadTemperature
Additional Resources:
Data Sheet
P1-04THM
on AutomationDirect.com