User manual OMRON CJ1M BROCHURE

[. . . ] Ladder diagram 1 to 7 steps per instruction Approx. 400 (3-digit function codes) 0. 1 µs min. 0. 5 ms No backplane (Units joined together with connectors. ) DIN track mounting (screw mounting not possible) 288 (cyclic tasks: 32, interrupt tasks: 256) Scheduled interrupts: Interrupts generated at a specified interval based on the CPU Unit's built-in clock. I/O interrupts: Interrupts from Interrupt Input Units or from built-in inputs (CJ1M-CPU22/23 only). [. . . ] Words in the DM Area maintain their status when the PLC is turned OFF or the operating mode is changed. Auxiliary Area Temporary Area Timer Area Counter Area DM Area Index Registers Task Flag Area 32 (TK0000 to TK0031) Task Flags are read-only flags that are ON when the corresponding cyclic task is being executed and OFF when the corresponding task is not being executed or is in standby status. 4, 000 words (trace data: 31 bits, 6 words) Memory Cards: OMRON Memory Cards with 8-MB, 15-MB, 30-MB, or 48-MB capacities can be used. (MSDOS format). Trace Memory File Memory Function Specifications Item Constant cycle time Cycle time monitoring I/O refreshing Possible: 1 to 32, 000 ms (unit: 1 ms) Possible (Unit stops operating if cycle is too long): 10 to 40, 000 ms (unit: 10 ms) Cyclic refreshing, immediate refreshing, refreshing by IORF(097). The CPU BUS UNIT I/O REFRESH (DLNK) instruction can be used to refresh CPU Bus Units (including allocated CIO and DM Area words) when required in the program. Data links for Control Link Units, remote I/O communications for DeviceNet Units, and other special data for CPU Bus Units are refreshed at the following times. During I/O refresh period or when CPU BUS UNIT I/O REFRESH (DLNK) instruction is executed. Specification Special refreshing for CPU Bus Units Possible (using the IOM Hold Bit in the Auxiliary Area) I/O memory holding when changing operating modes Load OFF Input time constant setting Operating mode setting at power-up Built-in flash memory All outputs from Output Units can be turned OFF when the CPU Unit is in RUN, MONITOR, or PROGRAM mode. Time constants can be set for inputs from CJ-series Basic I/O Units. The time constant can be increased to reduce influence of noise and chattering or it can be decreased to detect shorter pulses on inputs. Possible (By default, the CPU Unit will start in RUN mode if a Programming Console is not connected. ) User program and parameter areas (e. g. , PC Setup) are automatically backed up and restored. 14 Item Memory Card functions Automatically reading programs (autoboot) from the Memory Card when the power is turned ON. Program replacement during PLC operation Memory Card storage data Possible Specification Possible User program: Program file format PC Setup and other parameters: Data file format I/O memory: Data file format (binary), text format, CSV format CPU Bus Unit data: Special format User program instructions, Programming Devices (including CX-Programmer and Programming Console), Host Link computers, AR Area control bits, easy backup operation Memory Card read/write method Filing Debugging Online editing Memory Card data can be handled as files. Force-set/reset, differential monitoring, data tracing (scheduled, each cycle, or when instruction is executed) One or more program blocks in user programs can be overwritten when CPU Unit is in PROGRAM or MONITOR mode. This function is not supported for block program areas. With the CX-Programmer, more than one program circuit can be edited at the same time. Overwrite protection: Set using DIP switch. Copy protection: Password set using CX-Programmer. I/O comments can be stored in Memory Cards. Program checks are performed for items such as no END instruction and instruction errors. CX-Programmer can also be used to check programs. RUN output: The internal contacts will turn ON (close) while the CPU Unit is operating. (Possible only with CJ1WPA205R Power Supply Unit. ) 5 years at 25°C (The battery life depends on the ambient operating temperature; 0. 75 year min. ) (Battery Set: CJ1W-BAT01) Note: Use a replacement battery for which no more than 2 years have expired since the date of manufacture. Self-diagnostics Other functions CPU errors (watchdog timer), I/O bus errors, memory errors, and battery errors Storage of the number of times power has been interrupted. [. . . ] AR Area Words Pulse output 0: A276 (lower 4 digits) and A277 (upper 4 digits) Pulse output 1: A278 (lower 4 digits) and A279 (upper 4 digits) The present values are updated each cycle as part of overhead processing. The pulse output present value can be read to specified words using PRV (HIGH-SPEED COUNTER PV READ). Pulse output present value storage area 17 Pulse with Variable Duty Factor (PWM) Output Function Item Duty ratio Frequency Instruction for PWM 0% to 100%, set in 1% units 0. 1 to 999. 9 Hz, set in 0. 1-Hz units PWM (PULSE WITH VARIABLE DUTY FACTOR): Used to output pulses with the specified duty factor. Specification Hardware Specifications Input Specifications Item Number of input points Input type Input points Input voltage 10 points 24-VDC input or line driver input (switched with wiring) 24-VDC input IN0 to IN5 20. 4 to 26. 4 VDC IN6 to IN9 Line driver input IN0 to IN5 IN6 to IN9 Conforms to RS-422 line driver (equivalent to AM26LS31). The power supply voltage on the connected side must be 5 V±5%. [. . . ]