Connection and addressing notes
- Function codes
- 03 read registers (max 8 words), 06 write one word, 02 read bits data (max 16 bits), 00 write one bit
- Register addressing
- hex addresses (e.g. 1000H)
Registers in the map: 44. function 3 (holding registers). byte order big-endian. data types: word.
| MODBUS offset | Description | Units | Data type | Scale |
|---|---|---|---|---|
| 4142 | Software version | word | ||
| 4095 | Process value (pv) | word | ×0.1 | |
| 4096 | Set point (sv) | word | ×0.1 | |
| 4097 | Upper limit of temperature range | word | ||
| 4098 | Lower limit of temperature range | word | ||
| 4099 | Input temperature sensor type | word | ||
| 4100 | Control method | word | ||
| 4101 | Heating/cooling control selection | word | ||
| 4102 | 1st group of heatlng/cooling control cycle | word | ||
| 4103 | 2nd group of heating/cooling control cycle | word | ||
| 4104 | Pb proportional band | word | ||
| 4105 | Ti integral time | word | ||
| 4106 | Td derivative time | word | ||
| 4107 | Integration default | word | ×0.1 | |
| 4108 | Proportional control offset error value, when ti = 0 | word | ×0.1 | |
| 4109 | The setting of coef when dual loop output control are used | word | ||
| 4110 | The setting of dead band when dual loop output control are used | word | ||
| 4111 | Hysteresis setting value of the 1st output group | word | ||
| 4112 | Hysteresis setting value of the 2nd output group | word | ||
| 4113 | Output value read and write of output 1 | word | ×0.1 | |
| 4114 | Output value read and write of output 2 | word | ×0.1 | |
| 4115 | Upper limit regulation of analog linear output | word | ||
| 4116 | Lower limit regulation of analog linear output | word | ||
| 4117 | Temperature regulation value | word | ||
| 4118 | Analog decimal setting | word | ||
| 4123 | Pid parameter selection | word | ||
| 4124 | Sv value corresponded to pid value | word | ||
| 4127 | Alarm 1 type | word | ||
| 4128 | Alarm 2 type | word | ||
| 4129 | Alarm 3 type | word | ||
| 4130 | System alarm setting | word | ||
| 4131 | Upper limit alarm 1 | word | ||
| 4132 | Lower limit alarm 1 | word | ||
| 4133 | Upper limit alarm 2 | word | ||
| 4134 | Lower limit alarm 2 | word | ||
| 4135 | Upper limit alarm 3 | word | ||
| 4136 | Lower limit alarm 3 | word | ||
| 4137 | Read led status | word | ||
| 4138 | Read pushbutton status | word | ||
| 4139 | Setting lock status | word | ||
| 4143 | Start pattern number | word | ||
| 4159 | Actual step number setting inside the correspond pattern | word | ||
| 4175 | Cycle number for repeating the execution of the correspond pattern | word | ||
| 4191 | Link pattern number setting of the correspond pattern | word |