20
1 OVERVIEW
1.1 Performance Specifications
Operation control/transition control specifications
Table of the operation control/transition control specifications
■Expression
■Bit devices
: Usable, : Unusable
Restrictions on write-enabled bit devices
• Write to device X is allowed only in a device other than the actual input device.
• Special register, special relay has predetermined applications in the system. Do not perform write to other
than the user setting device.
■Word devices
: Usable, : Unusable
Restrictions on write-enabled word devices
• Special register has predetermined applications in the system. Do not perform write to other than the user-
set device.
Specifications Remark
Calculation expression Returns a numeric result.
Expressions for calculating indirectly specified data using constants and word devices.
D100+1, SIN(D100), etc.
Conditional
expression
Bit conditional
expression
Returns a true or false result.
Expression for judging ON or OFF of bit device.
M0, !M0, M1*M0,
(M1+M2)*(!M3+M4), etc.
Comparison conditional
expression
Expressions for comparing indirectly specified data and calculation expressions using
constants and word devices.
D100==100
D10<D102+D10, etc.
Device Symbol Accessibility Usable tasks Description
example
Read Write Normal Event NMI
Input X X100
Output Y Y100
Internal relay M M20
Link relay B B3FF
Annunciator F F0
Data register D D0.A
Link register W W1F.A
Motion register # #0.A
Special relay SM SM0
Special register SD SD0.A
CPU buffer memory access device U3E\G U3E0\G200.A
CPU buffer memory access device (fixed scan communication area) U3E\HG U3E0\HG200.A
Module access device U\G U0\G10200.A
Devices Symbol Accessibility Usable tasks Description
example
Read Write Normal Event NMI
Data register D DOL
Link register W W1F:F
Motion register # #0F
Special register SD SD0
CPU buffer memory access device U3E\G U3E0\G100L
CPU buffer memory access device (fixed scan communication area) U3E\HG U3E0\HG100L
Module access device U\G U0\G10100L