The characteristics of the Modbus connection are as follows (the options at the first start-up are shown in bold):
Parameter
Baud rate (bps)
Parity
Stop bit
Minimum response delay (ms)
Id
For information on Modbus registers that can be consulted and/or modified, refer to the manual of the device connected to Esy I/O.
IMPORTANT! In order to use the Modbus peripheral, enable it via APP by configuring the Modbus Mode parameter.
2.11 Fault management
Table 8 Describes possible faults that may be encountered by Esy I/O.
Fault
General
Insufficient supply voltage
Pressure sensor error (if sensor use is set)
Internal error
Wireless
Wifi
Figure 12: APP page for setting Modbus parameters
Description
Transmission speed
Parity check
Number of stop bits
Minimum response time (e.g., if 100, Esy I/O will
respond to the message after at least 100ms)
Slave identification (each slave device on the Modbus
network must have a different Id)
Table 7: Modbus characteristics
Table 8: List of faults
ENGLISH
FAULT LED
On with fixed light
1 blink
2 blinks
3... 7 blinks
8 blinks
9 blinks
23
Settable values
2400, 4800, 9600, 19200, 38400, 57600,
115200
No, Even, Odd
1.2
0 – 1000
1-247