EVCO EPK4BHQ1AH Hardware manual - Manual (Page 20)

EVCO S.p.A. c-pro 3 NODE kilo+ | Hardware manual ver. 1.0 | Code 114CP3NKPE104
page 20 of 55
B1/- RS-485 MODBUS master/slave port negative pole
A2/+ RS-485 MODBUS slave port positive pole
B2/- RS-485 MODBUS slave port negative pole
The following table shows the Function codes supported by the device, provided that it works in commander mode with a MODBUS
communication protocol.
FUNCT.
CODE
MEANING
FC 01 read coils
FC 02 read discrete inputs
FC 03 read multiple registers
FC 04 read input registers
FC 05 write single coil
FC 06 write single register
FC 08 diagnostic
FC 15 write multiple coils
FC 16 write multiple registers
FC 23 read write multiple registers (maximum 10 registers)
The RS-485 MODBUS slave and RS-485 MODBUS master/slave ports can be used for one of the following operations:
- device configuration (through the Parameters Manager set-up software system)
- device supervision (through the CloudEvolution system monitoring and supervision (via Web) system)
- MODBUS master function use with regard to other slave devices.
The CAN CANBUS port can be used to connect the device to the I/O expansions and remote user interfaces of the c-pro 3 range
The maximum number of devices that can be comprised in the CAN network (32) depends on the BUS load; the BUS load, in turn,
depends on the baud rate of the CANBUS communication and on the type of device (for instance, a CAN network can comprise 1
programmable controller with 4 I/O expansions and 4 remote user interfaces with a baud rate of 500,000 baud).
USB
USB port
Through the USB port it is possible to carry out one of the following actions:
- upload and download of application software (through the UNI-PRO 3 development environment or USB flash drive)
- application software debug (through the UNI-PRO 3 development environment)
- device configuration (through the Parameters Manager set-up software system or a USB flash drive)
- file transfer (through the UNI-PRO 3 development environment)
- data logging (through a USB flash drive).
Please see paragraph 6 "CONFIGURATION" for the settings of the USB port.