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Figure 47 Disable Storage Function
7.4 Multi-host Function
As shown in figure 47, "RS458 Multi-host Support" and "RS485 Bus Collision Detection
Function" are ZLAN multi-host functions. They are generally both enabled and disabled
at the same time. After enabling, the device with Modbus TCP transfer protocol has the
function of storage Modbus gateway, otherwise it is a non-storage Modbus gateway; If
the transfer protocol is None, usually can make the RS485 protocol of user customized
have the function of multi-host access the serial device at the same time, it cannot be
realized in the pure RS485 network, because multiple host simultaneous sending will
cause conflict on the RS485 bus. The multi-host of the ZLAN serial device server can
"coordinate" RS485 bus to achieve the purpose of multi-host access.