
COOLMAY EX3G PLC/HMI All in one Programming manual
Content
1. Overview......................................................................................................................................................... 1
1.1 EX3G PLC/HMI Allin one Main Advantage:...................................................................................... 1
1.2 Specification..........................................................................................................................................2
1.3 Hardware description............................................................................................................................ 3
1.3.1 EX3G-43HA/HB structure description and dimension..............................................................3
1.3.2 EX3G-43(50)KH structure description and dimension..............................................................4
1.3.3 EX3G-70KH structure description and dimension.................................................................... 5
1.3.4 EX3G-100HA structure description and dimension.................................................................. 6
1.3.5 Introduction of each interface and indicator.............................................................................. 7
2. PLC................................................................................................................................................................. 8
2.1 PLC Programming notice......................................................................................................................8
2.2 Soft element table..................................................................................................................................8
2.3 Special relay number and content....................................................................................................... 10
2.4 Special register number and content................................................................................................... 13
2.5 Applied instructions【Sequence is according to instruct variety】................................................... 17
2.6 Analog input........................................................................................................................................24
2.6.1 Analog input (temperature)...................................................................................................... 24
2.6.2 Analog input reading 1 (for software version 26210 and 26220)......................................... 26
2.6.3 Analog input reading 2 (for Main software version 26220)................................................. 27
2.6.4 Analog input reading 3 (for Main software version 26230 and above)................................ 27
2.6.5 Analog input sampling............................................................................................................. 28
2.6.6 Demo example......................................................................................................................... 29
2.7 Analog output......................................................................................................................................30
2.8 PID instruction.................................................................................................................................... 30
2.9.Application of high speed counter...................................................................................................... 30
2.10.Application of high speed pulse........................................................................................................31
2.10.1 high speed pulse output..........................................................................................................31
2.10.2 Circular interpolation............................................................................................................. 32
2.10.3 Continuous interpolation function..........................................................................................34
2.11 PLC Communication port User Manual........................................................................................... 37
2.11.1 Serial port 2: RS485(A B)/RS232..........................................................................................37
2.11.2 Serial port 3:RS485 (A1 B1)/RS232......................................................................................44
2.11.3 Modbus Communication address number..............................................................................51
2.12 Network communication...................................................................................................................55
2.13 Difference between EX3G and EX2N PLC/HMI All in one............................................................57
3. HMI............................................................................................................................................................... 61
3.1 HMI program software user introduction........................................................................................... 61
3.1.1HMI Program software installation...........................................................................................61
3.1.2 New build HMI program..........................................................................................................61
3.2 HMI Display download.......................................................................................................................62
3.2.1 Online download step (USB download line download)...........................................................62
3.2.2 U disk download step (43HB series don’t support)................................................................. 65