Chapter 2 Devices 2.1.4 Latched Areas in the Device Range 2-5 Device type Non-latched Latched Output relay PLC action area area SM205 is ON. Retained Cleared Retained (All latched areas are cleared.) Default value 0 0 0 Device Function Device range Latched area X Input relay X0~X511 (AHCPU5X0) All devices are non-latched. X0~X1024 (AHCPU5X1) Y Output relay Y0~Y511 (AHCPU5X0) All devices are non-latched. Y0~Y1024 (AHCPU5X1) M* Auxiliary relay M0~M8191 The default range is M0~M8191. SM Special auxiliary relay SM0~SM2047 (AHCPU511-EN/ AHCPU521/AHCP U531) SM0~SM4095 (AHCPU511-RS2) Some devices are latched, and can not be changed. Please refer to the function list of SM for more information.
S Stepping relay S0~S2047 All devices are non-latched. T* Timer T0~T2047 The default range is T0~T2047. C* Counter C0~C2047 The default range is C0~C2047. HC* 32-bit counter HC0~HC63 The default range is HC0~HC63. D* Data register D0~D16383 (AHCPU500) The default range is D0~D16383. D0~D32767 (AHCPU510/511/ 521/531) The default range is D0~D32767. At most 32768 devices can be latched areas. D0~D65535 (AHCPU520/530) SR Special data register SR0~SR2047 (AHCPU510/ AHCPU 511-EN / AHCPU 521/ AHCPU 531) SR0~SR4095 (AHCPU511-RS2) Some are latched, and can not be changed. Please refer to the function list of SR for more information. L Link register L0~L16383 (AHCPU500) All devices are non-latched.
L0~L32767 (AHCPU510) L0~L49151 (AHCPU511) L0~L65535 (ACPU520/530) L0~L98303 (ACPU521) L0~L131071 (AHCPU531) E Index register E0~E31 All devices are non-latched.