222
Attention:Only when Easy Ladder software station number is equal to 0
or PLC station number,you can download the program to PLC.
9.2 PR series PLC communication
PR series PLC support free port communication, MODBUS communication and CAN
communication.
Free port communication:
Free port communication is a half duplex communication based on RS-485
communication.Users can make their own communication protocol in free port
communication.Third party devices mostly support RS-485 serial communication .
The core of the free port communication are receiving and sending instructions.
RS-485 communication can not receive and send data at the same time.The RS-485
communication format includes a start bit, 7 or 8 bit characters, a parity bit,
and a stop bit.
Free port communication baud rate can be set to 1200, 2400, 4800, 9600, 19200,
38400, 57600 or 115200.Devices that meet the above conditions can communicate
with PLC.Free port mode has great flexibility.
Free port instructions:
UFP_RCV
UFP_RCV :Receive data instruction
l
PORT: Communication port.
l
TBL: Configuration table
,
If the input is MB200.
MB200 is the configuration byte:
(
Instruction output
)
M200.0 Communication
preparation
(
Instruction output
)
M200.1 Communication
completion
(
Instruction output
)
M200.2 Communication error
(
Instruction input
)
M200.3
Send CRC check
Содержание PR-12 Series
Страница 26: ...19 1 xLogic CPU PR 12 Series CPU PR 14 and PR 18 series 1 PR 18 CPU 2 PR E extension...
Страница 27: ...20 PR 24 series...
Страница 47: ...40 5 3 Instruction tree...
Страница 50: ...43 CAN interface PLC supports CAN communication CAN communication will be introduced in the communication block...
Страница 54: ...47 Force table interface When PLC is converted from RUN mode to STOP mode the selected output points will be 1...
Страница 58: ...51 5 3 10 Instructions Instructions will be explained in detail in the instructions section...
Страница 73: ...66 2 Select the PLC model ensure that the PLC model in the software is consistent with the actual PLC model...
Страница 93: ...86 2 Enter the illegal real number Example...
Страница 127: ...120 Example...
Страница 137: ...130 Kc gain TD Differential time Ts Sampling time PVn 1 Last time process variable PVn Process variable...
Страница 139: ...132 Special memory bit SM1 0 Zero result SM1 1 overflow SM1 2 Negative result Example...
Страница 143: ...136 Special memory bit SM1 0 Zero result SM1 1 overflow SM1 2 Negative result SM1 3 The divisor is 0 Example...
Страница 149: ...142 Example...
Страница 152: ...145 Example ATCH instruction only needs to be connected once...
Страница 154: ...147 Example...
Страница 172: ...165 Example Notes Cycle times are set to 100 times At the end of the cycle the value of VW100 is 100...
Страница 175: ...168...
Страница 182: ...175 Example When the value of M0 0 is 1 VB0 moves a bit towards the left and VB10 moves a bit towards the right...
Страница 217: ...210 Example Four arithmetic operation Main program...
Страница 218: ...211 Subroutine...
Страница 252: ...245 10 8 Example of serial port free port communication Program 1...
Страница 254: ...247 10 9 Example of CAN free port...
Страница 256: ...249 10 10 MODBUS communication master program Read multiple hold registers and write multiple hold registers...
Страница 258: ...251 Conversion of Process quantity and set value unit...
Страница 259: ...252 Call a PID command every 0 3 seconds...
Страница 260: ...253 The conversion of output value unit...