By using a general-purpose sequencer, you can build your own system. From simple loop control to complicated loop control, it realizes fine instrumentation control according to process conditions. Instrumentation control and sequence control can be executed by one CPU, so it can be used for systems that require higher-speed sequence control. In addition, a variety of functional units such as analog and temperature control are available to fully meet control needs. Just control is realized by combining with a CPU unit.

CPU performance specifications

Items	Universal model process CPU				Redundant CPU
Items	Q04UDPVCPU	Q06UDPVCPU	Q13UDPVCPU	Q26UDPVCPU	Q12PRHCPU	Q25PRHCPU
Sequence control language	Relay symbol word, logic symbolic language ^{* 1} , MELSAP3 (SFC), MELSAP-L, function block, structured text (ST)
Process control language	FBD for process control (programmed by PX Developer)
LD X0 [ns]	1.9	1.9	1.9	1.9	34	34
MOV D0 D1 [ns]	3.9	3.9	3.9	3.9	102	102
Tracking execution time ^{* 2} [ms]	─	─	─	─	Device memory 48K word point: 10 Device memory 100K word point: 15
Constant scan ^{* 3} [ms]	0.5 to 2000 (can be set in units of 0.1 ms) ^{* 4}				0.5 to 2000 (can be set in 0.5ms units) ^{* 4}
Memory capacity ^{* 5}
Program capacity ^{* 6} [bytes]	40K steps (160K) ^{* 7}	60K steps (240K) ^{* 7}	130K steps (520K) ^{* 7}	260K steps ( 1040K ) ^{* 7}	124K steps (496K)	252K steps ( 1008K )
Program memory (drive 0) [bytes]	160K	240K	520K	1040K	496K	1008K
Memory card (RAM) (drive 1)	─	─	─	─	For the installed memory card capacity (maximum 2 MB)
Memory card (SD) (drive 2)	Installed SD memory card (SD / SDHC) capacity (up to 32 GB)				─	─
Memory card (ROM) (drive 2)	─	─	─	─	For the installed memory card capacity (Flash card: maximum 4 MB, ATA card: maximum 32 MB)
Standard RAM (drive 3) [bytes]	256K ^{* 8}	768K ^{* 8}	1024K ^{* 8}	1280K ^{* 8}	256K	256K
Standard ROM (drive 4) [bytes]	1025.5K	1025.5K	2051K	4102K	496K	1008K

* 1. Logic symbolic words cannot be used with QnUDPVCPU because they are not supported by GX Works2.
* 2. Extended scan time.
* 3. This function keeps the scan time constant.
* 4. Can be set using parameters.
* 5. The unit of the file size stored in the memory area differs depending on the CPU unit.
* 6. The maximum number of sequence steps that can be executed is as shown in the right formula. (Program capacity)-(File header size (default: 34 steps))
* 7. When replacing QnPHCPU with QnUDPVCPU, the number of program steps may increase or decrease.
* 8. When using the extended SRAM cassette, it can be expanded up to 8M bytes.

Click here for the lineup of process control function units . Click here for the network unit lineup .