INVENTIA MT-101, Руководство пользователя

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In this system, the MT-101 module set to Modbus RTU Mirror mode can be used. The
module generates events based on data read from slave device connected to PORT 2 and
mirrored into modules internal registers. This method significantly extends the number of
inputs/outputs responsible for generation of events
13.2.2. Point to point communication
This is a basic minimal configuration enabling data transmission between two devices. In
this configuration, one can access internal module resources, discrete resources
(inputs/outputs) or access resources of a device connected to module's serial port or
mixed access to all above mentioned.
13.2.2.1. Using internal resources
This configuration requires two MT-101 modules, where one acts as a gateway to a
transmission system (PLC, SCADA) set in Modbus Master mode. In this case, the device
connected to MT-101 plays the role as master, sending inquiries about appropriate
resources of remote MT-101 module. The module connected to a master gives access to
its internal resources thus widening the central system.