Table 5-4 The Status Of Pulse Counter Modules Upon Power-On; Table 5-5 The Status Of Pulse Counter Modules During Stop State Of - Hitachi HSC-2100 Hardware Manual

5 MAKING USE OF MODULES
(2) The status of counter modules upon power-on
Table 5-4 shows the status of pulse counter modules that occurs immediately after the power
to the I/O unit in which they are installed is tuned on. This table is also applicable to
expansion units in which pulse counter modules are installed.

Table 5-4 The Status of Pulse Counter Modules upon Power-On

(3) The status of counter modules during stop state of remote I/O transfer
Table 5-5 shows the status of pulse counter modules that occurs while remote I/O transfer is
stopped.

Table 5-5 The Status of Pulse Counter Modules during Stop State of

Module model
Remote I/O transfer
Module
Preset value
Internal
Comparison
registers
value
Count value
R<C
Comparison
R=C
output
R>C
R>C
LED R=C
indication
R<C
(*1) These counter modules are used with the station module's output hold terminals (HOLD and COM) shorted.
(*2) These counter modules are used with the station module's output hold terminals (HOLD and COM) left open.
(*3) This normal operation proceeds according to the control code that was present immediately before remote I/O
transfer has been stopped.
Item
Module
Preset value
Internal
Comparison value
registers
Count value
R<C
Comparison
R=C
output
R>C
R>C
LED
R=C
indication
R<C
Remote I/O Transfer
LWC400
Stopped In progress
Operating Operating
normally (*3) normally
Same as Same as
above above
Same as Same as
above above
Status
Counting stopped
0
0
0
Off
Off
Off
Off
Off
Off
LWC401 & LWC402 (*1)
Stopped In progress
Operating Operating
normally (*3) normally
Same as Same as
above above
Same as Same as
above above
5-22
LWC401 & LWC402 (*2)
Stopped In progress
Counting Operating
stopped normally
Same as
Cleared
above
Held
Cleared
Held
Off
Held
Held
Off
Same as
Held
above