Instructions for User Program
- CIMON (Unlicensed)
SEND(P)
Function
This is the instruction used to send frame data of user type from a master station to slave stations. To use this instruction, a user protocol is to be selected as action mode protocol and to be downloaded in the RS232C/422/485 card setup. SEND instruction is to be executed by pulse.
FORAMT
PID: This is used to assign the name or the ID of special program.
F_NAME
This is used to enter a frame name or to assign a frame number. The number is to be assigned according to the following form.
Format in case of assigning a frame number
Upper byte(Bit 8-F): Assigning communication form(0: RS232C, 1: RS422/485)
Lower byte(Bit 0-7): Frame number in special program
Assigning communication form (Upper byte) | Frame number (Lower byte) |
[Ex.] In case communication form is RS232C and the frame of which number is 3 is sent, SEND (PID) h0003 (Result) |
Result
The word device informed of the result of sending is assigned.
Result Format
First Bit(Bit 0): In case of having been sent, 1 Scan On.
Second Bit(Bit 1): In case of having not been sent, always On.
Third Bit – Eighth Bit(Bit 2-7): Always Off.
Ninth Bit – Sixteenth Bit(Bit 8-F): Error Code.(0=No Error)
Error Code | Not Use | In case of an error in sending, On | In case of having been sent, 1Scan On |
Bit 8 ~ F | Bit 2 ~ 7 | Bit 1 | Bit 0 |
Example of Application
The following is an example of PLC program that a frame is sent to a slave station, in case that the special program file name of a master station is SENDING and the frame name registered to a protocol editor is TEST1.
RECV(P)
Function
This is the instruction used in slave stations to receive frame data from a master station. In case that a data accords with the frame of user form and is normal frame, the flag indicating received(Bit 0) is turned on. To use this instruction, a user protocol is to be selected as action mode protocol and to be downloaded in the RS232C/422/485 card setup. RECV instruction is to be executed by pulse.
FORAMT
PID: This is used to assign the name or the ID of special program.
F_NAME
This is used to enter a frame name or to assign a frame number. The number is to be assigned according to the following form.
Format in case of assigning a frame number
Upper byte(Bit 8-F): Assigning communication form(0: RS232C, 1: RS422/485)
Lower byte(Bit 0-7): Frame number in special program
Assigning communication form (Upper byte) | Frame number (Lower byte) |
[Ex.] In case communication form is RS422/485 and the frame of which number is 5 is sent, RECV (PID) h0105 (Result) |
Result
The word device informed of the result of sending is assigned.
Result Format
First Bit(Bit 0): In case of having been sent, 1 Scan On.
Second Bit(Bit 1): In case of having not been sent, always On.
Second Bit(Bit 1): In case of having not been sent, always On.
Third Bit – Eighth Bit(Bit 2-7): Always Off.
Ninth Bit – Sixteenth Bit(Bit 8-F): Error Code.(0=No Error)
Error Code | Not Use | In case of an error in receiving, On | In case of having been received, 1Scan On |
Bit 8 ~ F | Bit 2 ~ 7 | Bit 1 | Bit 0 |
Example of Application
Using RS232C/422/485 card, slave stations receive data from a master station. After receiving the data, the slave stations compare them with assigned frame data. The following is an example of PLC program that the frame is sent to a slave station, in case that a special program file name is RECEVING and the frame name registered in a protocol editor is TEST2.