This document will give you the maximum number of devices that can be polled by the Ewon Flexy per IOServer/Communication protocol
APPLICABLE PRODUCTS
Ewon : Flexy
IN THIS ARTICLE
Modbus RTU (Modbus IOserver)
By default, a Modbus RS485 network supports 32 Slaves.
But if the Modbus Slave devices have a high input impedance (like the one used in Ewon), then this limit can be extended to 254 devices .
Pay attention that the network must be terminated and polarized to achieve such a performance.
Modbus TCP (Modbus IOserver)
In Modbus TCP, you can poll up to 32 devices
Ethernet IP (DF1/ABLogix IOservers)
In Ethernet IP, you can poll up to 16 devices
Siemens MPI (S3&400 IOserver)
In MPI, you can poll up to 127 devices
Siemens ISOTCP (S3&400 IOserver)
In ISOTCP, you can poll up to 32 devices