Masters and Slaves
Section 4-1
50
Pins 1 to 3: Unit Number
Unit no.
Pin settings
Pin 1
Pin 2
Pin 3
0
OFF
OFF
OFF
1
ON
OFF
OFF
2
OFF
ON
OFF
3
ON
ON
OFF
4
OFF
OFF
ON
5
ON
OFF
ON
6
OFF
ON
ON
7
ON
ON
ON
Unit numbers 0 through 7 are used in C1000H and C2000H Systems. Use
numbers 0 and 2 or numbers 1 and 3 for C500 Slaves attached to a C200H
Master (to prevent overlapping word assignments). All other PC Systems use
only unit numbers 0 and 1.
Pin 4: Output HOLD/STOP Mode
OFF: STOP mode
All output words set to OFF for transmission errors.
ON: HOLD
mode
All output words retain status transmission errors.
Transmission errors for Slaves include errors in data from the Master and
no-data errors. Note that HOLD mode is not effective for all errors detected
by the CPU Unit.
4-1-3
C200H Master
Indicators
Unit number switch
Transmission line terminals
Note
Содержание SYSMAC C-series
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