OP320-A blue (English film blue screen) OP320-A yellow(English film yellow screen) OP320-A-S blue(English film blue screen) OP320-A-S yellow(English film yellow screen) MD204 blue(English film blue screen) MD204 yellow(English film yellow screen) MD204 green(English film green screen) Support PLC for a wide range of perfect compatibility The difference between OP320-A and OP320-A-S is that OP320-A is a built-in 232 and 422 communication port, and OP320-A-S is a 232 and 485 communication port. Technical Parameters Display: 3.7" STN LCD Power supply: 12~24VDC±10% Resolution: 192 × 64 pixels (supports 4 lines × 12 Chinese characters display) <150MA@24VDC LCM type: blue screen Anti-interference test: voltage 1500VP-P LCM display effect: blue screen is white on a blue background with white light. Pulse period 1US, lasting 1S LCM life: 50,000 hours at 25 ° 2 ° C, 65 ± 10% Withstand voltage test: 500VAC 1 minute Brightness: 60CD/M2 Insulation resistance: more than 10M ohms @500VDC Color: Monochrome | Shockproof test: 10~25HZ Contrast: potentiometer adjustment. (XG, Y, Z direction 2G30 minutes) Backlight: Long life LED white light Protection level: IP65 (front panel) CPU: 8-bit processor Working environment temperature: 0~50°C Memory 64KB FLASH ROM Working environment humidity: 20~90% (non-condensing) Recipe memory: none Storage temperature: D-20 ° C ~ 70 ° C Communication port: COM1: PC RS232 & PLC Housing material: engineering plastic ABS RS485/422&PLC RS232 Dimensions: 172X95X30MM Function buttons: 20 freely definable Display size: 101×36MM Real time clock: no installation Opening size: 165X86MM Print port: none Cooling method: natural air cooling Allow power loss: less than 20MS Weight: 0.3KG Support Chinese and English, two display fonts Create the screen on the computer through the editing software, freely input Chinese characters and set the PLC address, use the serial communication download screen communication protocol and the screen data to download to the display together, without programming the communication program without PLC