Specifications
Primary brand
Mitsubishi Electric
Main function
CPU unit
Product series / family name
Industrial automation > PLCs (Programmable Logic Controllers) > MELSEC-Q (QnU) series > Controllers (CPUs)
Sub-range name
MELSEC-Q QnU series
Functions
Process Programmable Logic Controller (PLC) CPU unit
I/O control system -- Refresh system
Program execution type -- stored-program cyclic operation
Supply voltage (DC)
5Vdc (from dedicated Q-series P.S.U.)
Programming languages
Ladder diagram (LD) / Relay symbol language
Structured Text (ST)
Logic symbolic language
Function Block Diagram (FBD)
MELSAP3 (SFC)
MELSAP-L
Process control (FBD)
Memory capacity
124Ksteps / 496KBytes (Program)
2048 points (Timers)
1024 points (Counters)
12288 points (Data registers)
8192 points (Internal relays)
8192 points (Latch relays)
8192 points (Link relays)
8192 points (Link register)
2048 points (Annunciator)
2048 points (Edge relays)
2048 points (Link special relays)
2048 points (Link special register)
131072 points (File registers)
8192 points (Step relays)
16 points (Index register Z)
4096 points (Pointer)
256 points (Interrupt pointer)
2048 points (Special relays)
16 points (Function input FX)
16 points (Function input FY)
5 points (Function register FD)
2048 points (Special register)
Connection capacity
4096 x I/O points
Connection type
USB connector
9-pin D-Sub female connector (RS-232)
Communication protocol
RS-232
Mounting mode
Backplane / rack
Ambient air temperature for operation
+32°F...+131°F / 0°C...+55 °C
Ambient air temperature for storage
-13°F...+167°F / -25°C...+75 °C
Processing time
34ns / instruction (LD instruction)- 0.000034 ms
102ns / instruction (MOV instruction) - 0.000102 ms
10.3μs / instruction (PC MIX value) - 0.0103 ms
780ns (Floating point addition) - 0.00078 ms
Order code / Manufacturer SKU
Q12PHCPU