Chapter 2 Specifications and System Configuratio n 2.2 CPU Module Specifications 2.2.1 Functional specifications 2_ 2-4 AS228T-A / AS228P-A AS324MT-A / AS332T-A / Item AS228R-A / AS218TX-A Remark AS332P-A AS218PX-A / AS218RX-A Execution The program is executed cyclically. The inputs and outputs can be Regenerated inputs/outputs Input/Output control controlled through the Direct inputs/outputs direct inputs and direct outputs.
IEC 61131-3 Programming language Ladder diagrams, continuous function charts, structured text, and sequential function charts Instruction execution speed 40K steps/ms Number of instructions Approximately 666 instructions 1-32000 Constant scan cycle (ms) (The scan cycle can be increased by one Setting the parameter millisecond.) Program capacity (step) 128K steps (256K bytes) 64K steps (128K bytes) Installation DIN rails or screws Installation of a module No backplane installation; only module after module Maximum number of modules which can be 32 modules installed Refer to the AS Series 283 tasks (32 cyclic tasks; 16 I/O interrupts; four Number of tasks Operation manual for timed interrupts, etc.) more information.
Number of inputs/outputs Number of inputs/outputs 1024 accessible to an actual input/output module Input relays [X] 1024 Output relays [Y] 1024 Internal relays [M] 8192 (M0–M8191) Timers [T] 512 (T0–T511) Counters [C] 512 (C0–C511) 32-bit counter [HC] 256 (HC0–HC255) Data register [D] 30000 (D0–D29999) Data register [W] 30000 (W0–W29999) Stepping relay [S] 2048 (S0–S2047) Index register [E] 10 (E0–E9) Special auxiliary relay [SM] 2048 (SM0–SM2047) Special data register [SR] 2048 (SR0–SR2047) Serial communication port 2x RS-485 Ethernet port 10/100 M Refer to the section 9.3