Toshiba nv Series Instruction Manual page 20

Chapter 1 Introducing the IS911 Module
2. 1:N transmission
(2) Data input / output
via TC-net I/O Loop
PU821:
SA911:
IS911:
CPU:
CMU:
 For RS-485 / RS-422 line connection, connect a terminating resistor to the
 Each station must be set with a station number. Set the station number so that
 Only 4-wire (4W) lines can be used.
8
6F8C1509
When IS911 module and SYSMAC PLC are connected via RS-485 line, up
to 32 SYSMAC PLCs can be connected to IS911 module.
The following figure shows a system configuration example for performing
1:N transmission with SYSMAC PLC.
(1) Data is written and read by performing a SYSMAC host link transmission
between the IS911 module and the PLC.
(2) The type2 controller inputs / outputs IS911 module transmission data via
the TC-net I/O Loop.
Unified Controller nV
series type2
TC-net I/O Loop
RS-485
Connect the
terminating
resistor.
type2 controller module
TC-net I/O IF module
Serial communication module
CPU unit
Serial communication board (CS1W-SCB41-V1)
Figure 1-4 System configuration example of 1:N transmission of
Note
communication module connected to the line end. Refer to "2.4 Transmission
Cable Connection" for how to attach a terminating resistor to the IS911 module.
the station number does not overlap. (The station number can be set in the
range of 0 to 31.)
SYSMAC PLC SYSMAC PLC
Station １
Station 0
CMU CPU CMU CPU
RS-485
RS-485
(1) Host link type data
SYSMAC host link
SYSMAC PLC
Station ３１
CMU CPU
RS-485
Termination
ON
transmission