How to connect serial devices ? ^{CODESYS Forge talk (Thread)}
How to connect serial devices ?
Last updated: 2024-01-06

Read Serial Number of PLC ^{CODESYS Forge talk (Thread)}
Read Serial Number of PLC
Last updated: 2024-05-21

Post by wbj0t on What the right way to update TCP/COM slave device holding registers ^{CODESYS Forge talk (Post)}
Hi all :) I have an plc. This plc has option to be as slave device. There are TCP -> Serial Slave Device and COM -> Serial Slave Device. There are 4096 ModBus holding registers with mark "internal modify" for the both devices above. So, COM Slave has 4096 registers and TCP Slave has 4096 registers. And, finally, I have an ARRAY[0..4095] OF WORD. This array glued with COM Slave and TCP slave. Yes, I need plc's opportunity to be communication both TCP and COM ways for the same registers. For example, the next task structure: * TASK_0: 1. pou_READ_Registers 2. pou_0 3. pou_1 4. ... 5. pou_N 6. pou_WRITE_Registers At the first pou I read registers for the other pous, after job we have sort of state of the plc. At the last pou (6) we write modified registers. It is a good scenario: some one wrote registers for the job, after job we save these (modified) registers. But, what if registers wrote between 1 and 6 pou by operator, for example, at the 3 pou -> the last pou 'pou_WRITE' will rewrite this request from operator. What the right way to work with this logic? Thanks you.
Last updated: 2024-07-01

Start CoDeSysHMI with different COM ports ^{CODESYS Forge talk (Thread)}
Start CoDeSysHMI with different COM ports
Last updated: 2008-02-01

Codesys 2.3, WindowsXP, OLE/COM Automation ^{CODESYS Forge talk (Thread)}
Codesys 2.3, WindowsXP, OLE/COM Automation
Last updated: 2013-09-20

Two libraries for COM port. Which is better to use? ^{CODESYS Forge talk (Thread)}
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Last updated: 2021-03-11

Post by corriibme on Read Serial Number of PLC ^{CODESYS Forge talk (Post)}
I have recently used this example from @Brine, and it worked. Thanks
Last updated: 2024-05-21

Wrong order of bytes received from serial port ^{CODESYS Forge talk (Thread)}
Wrong order of bytes received from serial port
Last updated: 2021-09-13

Serial communication library and Modbus Rtu library ^{CODESYS Forge talk (Thread)}
Serial communication library and Modbus Rtu library
Last updated: 2017-01-25

Serial Communication - EL 6001 in TwinCAT ^{CODESYS Forge talk (Thread)}
Serial Communication - EL 6001 in TwinCAT
Last updated: 2011-01-12

Modbus Serial Device more than 500 holding registers? ^{CODESYS Forge talk (Thread)}
Modbus Serial Device more than 500 holding registers?
Last updated: 2020-02-11

Modbus serial master on RTE V3 demo ^{CODESYS Forge talk (Thread)}
Modbus serial master on RTE V3 demo
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Serielle Schnittstelle am Rapi und USB Serial Wandler gleichzeitg nutzen ^{CODESYS Forge talk (Thread)}
Serielle Schnittstelle am Rapi und USB Serial Wandler gleichzeitg nutzen
Last updated: 2018-12-21

WAGO 750-8212 Serial Port at Controller for Modbus ^{CODESYS Forge talk (Thread)}
WAGO 750-8212 Serial Port at Controller for Modbus
Last updated: 2019-06-24

Proper method to configure and open Controller's serial port ^{CODESYS Forge talk (Thread)}
Proper method to configure and open Controller's serial port
Last updated: 2021-07-17

Reading serial data sent from Arduino to Pi ^{CODESYS Forge talk (Thread)}
Reading serial data sent from Arduino to Pi
Last updated: 2015-02-26

RevPI Modbus RTU Serial Port not running ^{CODESYS Forge talk (Thread)}
RevPI Modbus RTU Serial Port not running
Last updated: 2023-03-06

Beckhoff EL 6002 Serial interface terminal ^{CODESYS Forge talk (Thread)}
Beckhoff EL 6002 Serial interface terminal
Last updated: 2014-10-26

Connecting to PLC via serial cable / usb ^{CODESYS Forge talk (Thread)}
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Last updated: 2019-11-06

Modbus RTU serial issues with Codesys V3 RTE ^{CODESYS Forge talk (Thread)}
Modbus RTU serial issues with Codesys V3 RTE
Last updated: 2016-01-26

Serial Communication On the Festo CECC-S(RS232) ^{CODESYS Forge talk (Thread)}
Serial Communication On the Festo CECC-S(RS232)
Last updated: 2014-09-24

Serial Communication with WAGO UPS 787-870 ^{CODESYS Forge talk (Thread)}
Serial Communication with WAGO UPS 787-870
Last updated: 2016-09-07

Multiple Serial devices over USB on Raspberry Pi ^{CODESYS Forge talk (Thread)}
Multiple Serial devices over USB on Raspberry Pi
Last updated: 2019-04-09

Discontinued CAN/serial cape from Logic Supply... ^{CODESYS Forge talk (Thread)}
Discontinued CAN/serial cape from Logic Supply...
Last updated: 2018-11-15

codesys serial communication Ivu banner & HMI turck VT250 ^{CODESYS Forge talk (Thread)}
codesys serial communication Ivu banner & HMI turck VT250
Last updated: 2014-11-12

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