Unit Operations:
The work bits I0200.00 to I0200.15 control the mode of operation of the unit as follows:
Work Bit
Function
I0200.00
Controls
LED0
I0200.01 Controls
LED1
I0200.02 &
I0200.03 Not
used
I0200.04 to
I0200.07
Reserved for future use
I0200.08 &
00 : Screen mode
01 : Register mode
I0200.09
10 : Operator mode 11 : Invalid
I0200.10 &
Timeout to screen mode from Operator mode
I0200.11
00 : 10 seconds
01 : 20 seconds
10 : 30 seconds
11 : 40 seconds
I0200.12 to
I0200.14
Reserved for future use
I0200.15
To disable data entry in Screen mode
(ON
:
Disable)
From the above table, it is clear that the unit will display ASCII text (see section on
Screens
for
more details on this ) if I0200.08 and I0200.09 are OFF. To allow operators to view and edit the
registers, I0200.09 is to be kept ON. If I0200.09 is OFF, the unit will not display any registers and
the function keys will only act as push buttons mapped to the corresponding bits from I0201.00.
Refer to “Register Mode” for details. If I0200.09 is ON, REG key press will allow an operator to
view the registers. The REG key will scroll through the available register types whereas the UP
and DOWN arrow keys will scroll through the register/bit numbers. After timeout specified by bits
10 and 11 and if no key is pressed, the unit will switch back to the Screen mode and display
screens. Thus Operator mode is a combination of Register as well as Screen modes.
