Delta AH Series User Manual

AH Motion Controller – Operation Manual
5-4
_5
5.2.3. Latched Devices
 Latched areas of each type of device
Device
Function
Device range
Latched area
X
Input relay
X devices (bit):
X0.0~X511.15
X devices (word): X0~X511
All devices are non-latched.
Y
Output relay
Y devices (bit):
Y0.0~Y511.15
Y devices (word): Y0~Y511
All devices are non-latched.
M*
Auxiliary relay
M0~M8191
Default: M0~M8191
SM
Special
auxiliary relay
SM: SM0~SM2047
Some devices are latched, and can not be
changed. Refer to the table of special auxiliary
relays in the appendices for more information.
S
Stepping relay
S0~S2047
All devices are non-latched.
T*
Timer
T0~T2047
Default: T0~T2047.
C*
Counter
C0~C2047
Default: C0~C2047.
HC/AC*
32-bit counter
HC: HC0~HC63
AC: AC0~ AC55
(AHxxEMC)
Default: HC0~HC63.
AC devices are non-latched.
D*
Data register
D device (bit):
D0.0~D65535.15
D device (word):
D0~D65535
Default: D0~D32767.
At most 32768 devices can be latched devices.
SR
Special data
register
SR: SR0~SR2047
Some are latched, and can not be changed.
Refer to the list of special data registers for more
information.
L
Link register L0~ L65535 All devices are non-latched.
E
Index register
E0~E31
All devices are non-latched.
*Note: You can define the range of latched areas for T, C, M and D and set the devices to be non-latched. Note that the
range should not exceed the available device range, and only 32768 D devices at most can be non-latched. For example,
you can set D50~D32817 or D32768~D65535 to latched area though the default range of latched areas is D0~D32767.
Do not disconnect power or CPU module while the power is on. Once the PLC is disconnected from the backplane, the
data in the latched area such as devices will be affected.

Delta AH Series Specifications

General

Brand	Delta
Model	AH Series
Category	Controller
Language	English