Can the PR200 be used in a Modbus network as a slave?

In general it is possible to use the PR200 in the slave mode but note:

when a device is configured as a Modbus RTU Slave, it generally cannot accept unsolicited messages or write commands directly from the Master. The Slave can only respond to read requests (queries) from the Master. This means the Master can request data from the registers of the Slave (e.g., Holding Registers, Input Registers, Discrete Inputs), but the Slave will not actively send data or accept write commands from the Master.

In the Slave mode, the following network functions are possible:

• Read digital I/O status
• Read analog I/O value
• Read / write network variables
• Read / write Real-Time Clock data

To configure the PR200, you will need the akYtec ALP. ALP stands for the programming software for the PR200 and many other devices from akYtec. However, please note that the write function is limited to specific resources. Therefore, you should consider whether the PR200 is suitable as a Slave to meet your requirements. Also, it is advisable to ensure that the used Master device is compatible with the akYtec ALP to facilitate a smooth setup.