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  2. Samrello
  3. PIC153-P-C-1

Samrello PIC153-P-C-1 Modbus register map

Universal temperature and process controller with RS485 Modbus RTU

  • Official
  • 64 registers
  • Modbus RTU
  • Revision 1 · 2026-11-11

Official: Written from the manufacturer's documentation, but not tested on a device yet. Check the map against the manufacturer's documentation before you write to a live device. Tested it? Report a test.

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Communication

Protocol
Modbus RTU
Unit ID
1
Serial
9600 8N1 · 9600 baud, 8 data bits, none parity, 1 stop bit
Byte / word order
ABCD · bytes big-endian, words high first
Addresses
0-based

Connection values are defaults: the device may be configured differently.

Map

Registers
40 holding registers, 2 input registers, 16 coils, 6 discrete inputs
Groups
5
Translation tables
8
Revision
1 · 2026-11-11
Added
()
File
maps/samrello/pic153-p-c-1.mbmap.json · 15 KB · history
SHA-256
80f67906eb98bb2ea40996b7db81cd72aa0bdb8bf2352ab35e53e13930dcbee4
Manufacturer
samrello.com.br

Sources and notes

  • PIC153-P-C-1 RS485 Modbus Address (www.selec.com)
    Supplied with the map request

Source: Selec PIC153-P-C-1, RS485 Modbus address list

  • The device is the Selec PIC153 sold by Samrello. The addresses are the hexadecimal ones in the document (coil 10001 is address 1, input register 30007 is address 7, holding register 40064 is address 64 = 0x40), used as they are with address_base 0.
  • Functions: 0x01 coils, 0x02 discrete inputs, 0x04 input registers, 0x10 to write holding registers.
  • The document lists some parameters (scale, setpoint limits, alarms, hysteresis, bias) more than once with different widths and ranges (4-byte at 40032 to 40052, 40512 to 40562 and 40544 to 40600). Only the 16-bit set at 40064 to 40116 and the one-register configuration entries are mapped; the others are left out because the document does not say which resolution or mode selects them.
  • Scaling of the 16-bit parameters follows the resolution setting (register 131); the document gives no fixed factor, so the values are raw.
  • The document gives the final PV as a signed DINT at 30007; the float at 30066 does not state its word order (big assumed).
AreaAddressNameTypeAccessUnitScaleDescription
CO 1 bool RW 0 = °C, 1 = °F
CO 2 bool RW 0 = no, 1 = yes
CO 3 bool RW 0 = no, 1 = yes
CO 7 bool RW 0 = on, 1 = off
CO 8 bool RW 0 = on, 1 = off
CO 9 bool RW 0 = energize, 1 = de-energize
CO 10 bool RW 0 = off, 1 = on
CO 13 bool RW 0 = on, 1 = off
CO 14 bool RW 0 = on, 1 = off
CO 15 bool RW 0 = energize, 1 = de-energize
CO 16 bool RW 0 = off, 1 = on
CO 19 bool RW 0 = low, 1 = high
CO 20 bool RW 0 = no, 1 = yes
CO 21 bool RW 0 = no, 1 = yes
CO 22 bool RW 0 = no, 1 = yes
CO 24 bool RW 0 = no, 1 = yes
DI 1 bool R
DI 2 bool R
DI 3 bool R
DI 4 bool R
DI 5 bool R
DI 6 bool R
IR 7 int32 ABCD R Final PV as a signed 32-bit integer; the decimal point follows the resolution setting
IR 66 float32 ABCD R Final PV as a 32-bit float
HR 64 int16 RW
HR 65 int16 RW
HR 66 int16 RW
HR 67 int16 RW
HR 68 int16 RW
HR 69 int16 RW
HR 96 uint16 RW
HR 97 int16 RW
HR 98 int16 RW
HR 99 uint16 RW
HR 100 uint16 RW
HR 101 uint16 RW
HR 102 int16 RW
HR 103 int16 RW
HR 104 uint16 RW
HR 105 uint16 RW
HR 106 uint16 RW
HR 107 uint16 RW
HR 110 uint16 RW
HR 111 int16 RW
HR 112 int16 RW
HR 113 int16 RW
HR 116 uint16 RW
HR 129 uint16 RW
HR 131 uint16 RW Thermocouple/RTD: 0 = 1, 1 = 0.1. Analog input: 0 = 1, 1 = 0.1, 2 = 0.01, 3 = 0.001, 4 = 0.0001
HR 132 uint16 RW
HR 133 uint16 RW
HR 134 uint16 RW
HR 135 uint16 RW
HR 147 uint16 RW
HR 151 uint16 RW
HR 155 uint16 RW
HR 157 uint16 RW
HR 161 uint16 RW 1 to 99 for thermocouple/RTD
HR 162 uint16 RW 0.1 to 10.0 for analog input
HR 174 uint16 RW
HR 176 uint16 RW
HR 177 uint16 RW
HR 178 uint16 RW
HR 179 uint16 RW

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