Difference between Delta PLC EH2 series and EH3
- The capacity of the Ladder program is upgraded to 30k Steps, and the number of D devices is increased to 12000.
· The capacity of the memory card has doubled. To prevent the wrong insertion, the new memory card and the old one are not interchangeable
· Some function cards of DVP-EH2 PLC can not be used in DVP-EH3. The function cards which can be used are all communication cards, 02AD card and 02DA card.
· When the position of the basic instruction is below 16k Step, the execution speed does not make any change.
· When its position is above 16k Step, the execution speed becomes 2.8μs.
· The execution speed of MOV instruction is improved to 4.8μs, and that of other application instructions is also improved by 4~5 times.
· The high-speed input/output functions of DVP-EH3 PLC.
- The number of external input interruptions is 16.
- There are 3 sets of masking functions of the interruption.
- Newly added CSFO instruction has the speed-tracing function and can be used with the manual pulse generator.
- Newly added DVSPO and DICF instructions have various speed-changing functions. (Please refer to API 198 and API 199.)
- The zero return instruction (DZRN) has the function of detecting limit switches, stopping at the positive position, seeking Z phase, and outputting the displacement. (Please refer to API 156.)
- The direction outputs of DZRN instruction are used with Y1, Y3, Y5, and Y7. (Please refer to API 156.)
- That special M can set the start and reset functions of C235~C240 is cancelled. The bandwidth of C235~C240can be up to 10 KHz.