5
Connecting several devices to M-Link
Modbus RTU Master
Ouman Device:
C203/S203/H23/Ouflex M/ Ouflex M BA)
C-Serial RJ45 -TCP Port 502
RTU Serial - TCP Port 506
Modbus Slave
Device
M-Link internal r
egisters
T
CP P
ort 505
TCP P
ort 504
Serial 2 (Ouflex M, Ouflex M BA)
Serial 1
TCP P
ort 503
C bus connector / connectors (RJ45)
• You can only connect one Ouman device to one of the RJ45 connector (Ouflex M / Ouflex M BA, S203, C203 or H23).
• M-LINK receives its operating voltage via the connected device. (An external operating voltage source is not requi-
red.)
• The firmware (version) of the device connected via the C bus can be updated remotely, where necessary.
• The application of the device connected via the C bus can be uploaded remotely (Ouflex M BA and Ouflex M, if the
Ouflex M device has a memory card in place).
• Through the device connected to the C bus, you can read Modbus devices that have been connected under it as
Modus RTU slave devices. (Ports 503 & 504)
Modbus RTU (screw connectors)
• It is possible to connect several Modbus devices to the RTU bus (max. 10 devices).
• When M-LINK is the Modbus master device, point transfers can be made between the devices.
