Mitsubishi TTL CMOS Output Module AY70 – High-Speed Digital I/O for PLC Systems
Mitsubishi TTL CMOS Output Module AY70
The Mitsubishi TTL CMOS output module AY70 features 16 sink-type output points, DC 5/12V voltage, 1ms response time, 8 points per common terminal, and a 20-point terminal block. It operates with a scanning cycle that includes input sampling, program execution, and output refresh. Inputs are sampled and outputs are refreshed in a centralized manner, causing response delays. New input states during program execution are not read until the next scan. The component image register content changes during program execution. Scan cycle length depends on CPU instruction speed, instruction execution time, and instruction count. PLC selection should consider performance and cost based on application. System program memory stores system programs (management, monitoring, and compilation) in read-only memory, which is factory-set, unchangeable, and non-volatile.
Mitsubishi TTL CMOS Output Module AY70
●Output points: 16
●Voltage: DC 5/12V
●Output type: Sink type
●Response time: 1ms
●Common terminal: 8 points per common
●Terminal block: 20 points
During each scan cycle, inputs are sampled and outputs are refreshed collectively.
When the input port is closed, new input states during program execution cannot be read until the next scan.
A scan cycle consists of input sampling, program execution, and output refresh.
The contents of the image registers change as the program executes.
Scan cycle duration depends on CPU instruction speed, instruction execution time, and number of instructions.
Due to the collective sampling and output method, input/output response delays occur.
PLC selection:
As PLC technology advances, product variety increases. Different models offer different performance, application suitability, and pricing.
Selection should balance control requirements with cost-effectiveness.
System program memory stores system programs (management, monitoring, and compilation/interpretation programs).
It is composed of read-only memory, set by the manufacturer, unchangeable, and non-volatile.
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