IDEC DS2_Series - Manual (Page 19)

DS2 series Instruction manual
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6.2.1. DS2 user interface – General information
The DS2 user interface is a Windows program, compatible with 9x/SE/Me/NT/2000/XP versions,
that controls the scanning trend and the digital output status of the DS2 AREAscan
TM light grids.
Thanks to the easy and intuitive user interface, the different configuration parameters of the light
grid, stored in the non-volatile device memory, can be visualised and modified.
The number and type of measurements transmitted depend on the local or remote programming.
In local programming, a fixed measurement is transmitted for each operating mode.
Whereas in remote programming, one or more measurements can be selected amongst those listed
in section 5.2 “Measurement mode”.
Please acknowledge that the same measurements cannot be selected twice.
This data can be transmitted either in binary or in ASCII code.
The communication protocol can be developed according to the Master Slave mode.
The information exchange can be made in the request-reply mode: the master sends a data packet
to the slave and the slave replies sending another data packet to the master.
The communication line is a half duplex (RS485) type and can be used by only one unit a time.
The master always begins the exchange.