Programmable Logic Controller.

programmable logic

Realizes High-Speed Advanced Machine Control

Ultra-high-speed 1 ms controller

1 ms scan

  • Program scan time of 1ms is implemented by increased instruction processing speed.
  • Real number operation and high-precision positioning control have been put to practical use by dramatically improved floating-point operation speed.
SPH3000 SPH300 SPH2000 SPH200
Basic instruction LD 9ns 20ns 30ns 70ns
MOV 8ns 40ns 40ns 140ns
Floating Operation instruction 88ns 80ns 270ns to 56000ns to

*For details on each instruction word’s processing speed and tact cycle, see the User’s Manual (FEH200).

1 ms I/O refreshing

1 ms I/O refreshing
  • 1024 points of I/O is refreshed in 1 ms.
  • Tact control assures a fixed I/O refresh interval. The I/O refresh cycle can be set to 1 ms, 2 ms, or up to 10 ms, which is suitable for processing requiring strict tact time.
  • The minimum tact times of SPH3000MM, SPH300, and SPH2000/SPH3000 can be set at 0.25 ms, 0.5 ms, and 1 ms, respectively.

Tact cycle

E-SX bus

Tact cycle 0.25ms 0.375ms 0.5ms 1ms 1.5ms 2ms
Max. I/O size
(Number of I/O stations)
4 stations 67word 256word 512word 2048word 2048word 4096word
16 stations - - 256word 1024word 1024word 1024word
32 stations - - - 512word 2048word 2048word
64 stations - - - - 512word 1024word

SX bus

Tact cycle 0.25ms 0.375ms 0.5ms 1ms 1.5ms 2ms
Max. I/O size - - 64word 128word 256word 512word

Controller conforms to International Standard

Conforms to IEC 61131 international standard

  • Both the hardware and software conform to the IEC 61131 international standard for programmable controllers.
  • The programming language conforms to the IEC 61131-3 international standard.

Conforming to international standard

  • Conforms to the CE marking, UL standards and RoHS directive (conforming one after another) as well as IEC standard.
  • It also complies with the NK marine standard (Japan) and the LR (specifications of Lloyd’s Register of Shipping, UK).
Conforming to international standard

Multi-CPU system applicable to up to 8 CPUs

Parallel processing with up to 8 CPUs (SPH300/SPH2000/SPH3000)

  • Alleviates the load for each CPU allowing high-speed processing of a large application program. For example, the load can be distributed for advanced processing and sequence control processing with additional CPUs. I/O refresh control is performed automatically even if parallel processing by multiple CPUs is performed.
Figure illustrating reduced processing time for parallel cperations by 4 units of CPUs

Redundant System Brings System Safety and Reliability

1:1 warm-standby feature (SPH300/SPH2000)

  • This redundancy configuration enables continued operation without system downtime if a CPU fails. (Control may temporarily stop due to fault detection and CPU changeover.)
  • The same program is stored in CPUs for the active and backup systems, allowing constant data value equalization.
1:1 warm-standby feature (SPH300/SPH2000)

N:1 cold-standby feature (SPH300)

  • N:1 backup feature enables reduction of the number of standby system CPUs to one, though when a CPU fails, data retained in the active system and that in the standby system are not equalized.
  • Data retained by the active system is not taken over. The backup system CPU performs initial start.
N:1 cold-standby feature (SPH300)-01
  • Programs can be intensively controlled by a memory card. Programs for N units of systems can be stored on a memory card, which is installed in the memory card interface module for centralized control of the programs. The same processing programs as on the down CPU are downloaded to the backup system CPU.

Note 1: The model that supports SPH2000 is NP1PM-256H.
Note 2: For a redundancy configuration buildup with a DC power supply, contact our sales section.

N:1 cold-standby feature (SPH300)-02

Ultra-high speed E-SX bus

Comparison of functions and performances between the E-SX bus and the SX bus

Function and performance SPH3000 SPH3000MM/MG
System bus SX bus SX bus E-SX bus
Direct connection I/O capacity 512word 512word 4096word
Refresh performance 128word/ms 128word/ms 2048word/ms
Transmission speed 25Mbps 25Mbps 100Mbps
Tact fluctuation 100µs 100µs ±1µs or less
Synchronization between stations None None Provided(±1µs or less)
Distance (between stations/total distance) 25m/25m 25m/25m 100m/1km
Continued operation with the line broken
(Loopback)
None None Provided
  • Direct connection I/O capacity
  • Transmission speed
  • Refresh performance
  • Tact accuracy
  • Distance

Synchronization control of E-SX bus

Synchronization in the bus

Data output timing is synchronized in the E-SX bus.

Synchronization in the bus

Synchronization between buses

Data output timing is synchronized between channels of the E-SX bus.

Synchronization between buses

Connection function of the E-SX bus

Loopback function

Communication is continued by the signal repeater function even when a wire is broken.

Loopback function

Signal bypass function

Even when a power of some devices is not turned on, the communication is continued by the auxiliary power unit.

Signal bypass function

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