Yaskawa VCD 723 - Manual (Page 20)

1 Introduction
14 System Considerations
9/15/93
Figure 1. Typical MicroTrac System Diagram
MicroTrac
Drive
DRIVE
CONTROL
UNIT
REMOTE
INPUT/OUTPUT
CONTROLLER
PCB (RI/O)
REMOTE
PLC INTER-
FACE
REMOTE
COMMUNICATIONS
CONTROLLER
PCB (RSC)
REMOTE
DISPLAY
CONTROLLER
PCB (RDC)
DISPLAY #1
REMOTE
DISPLAY
UNIT (RDU)
DISPLAY #2
PERSONAL
COMPUTER
PROGRAMMABLE
LOGIC
CONTROLLER (PLC)
RS-232 OR
RS-422
RS-485
DISPLAY #3
DISPLAY #4
UP TO 9 BANKS OF
6 DIGITS
PCDU
MESSAGE
SELECT
+1 8 8 8 8 8
8 8 8 8 8 8
+1 8 8 8 8 8
THUMB
WHEELS
8 ISOLATED LOGIC
I/O MODULES
7 NON-ISOLATED
LOGIC OUTPUTS
16 NON-ISOLATED
LOGIC INPUTS
4 ISOLATED ANALOG
I/O MODULES
7 NON-ISOLATED
ANALOG OUTPUTS
4 NON-ISOLATED
ANALOG OUTPUTS
4 NON-ISOLATED
ANALOG INPUTS
REMOTE
THUMBWHEEL
INPUT/OUTPUT
PCB
(TWI/O)
REMOTE
ANALOG
INPUT/OUTPUT
PCB
(ANI/O)
UP TO 6 REMOTE INPUT/OUTPUT PCBS
UP TO 31 REMOTE
DISPLAY UNITS
KEYBOARD
REMOTE
LOGIC
INPUT/OUTPUT
PCB
(LOGI/O)
KEYBOARD
ENABLE
2.5 million bits/second
93 Ohm
Terminator
93 Ohm
Terminator
LOCAL
I/O
RG 62/U Coaxial Cable
1 2 3 D C
4 5 6 D N
7 8 9
0 N E •
LA-8
LOCAL
I/O
LOCAL
I/O
MicroTrac
Drive
DRIVE
CONTROL
UNIT
MicroTrac
Drive
DRIVE
CONTROL
UNIT
+ -