IDEC High Performance Series - Manual (Page 173)

WindO/I-NV2 User’s Manual 3-71
5 User Communication
3
Communic
ation
●
Example 2
This section describes an example of user communication protocol settings for creating the following commands and
command operations.
• Transmission command for transmitting data using Constant (Hexadecimal), Registering Constant (Character),
Device, BCC, Constant (Hexadecimal) command settings when the trigger condition device changes to 1
• Receive command for receiving, processing, and storing data in devices, using Constant (Hexadecimal), Registering
Constant (Character), Skip, Device, BCC, Constant (Hexadecimal) command settings, for data transmitted from an
external device, when the trigger condition device is 1
■ User Communication Settings dialog box settings
■ Transmission command: Command Settings dialog box settings
Operation for transmission command
1 Write a value of 10 (DEC) to LDR200 for Registering Constant (Character) for transmission command data.
AB is selected.
2 Write a value of 3132h to LDR210 and 3334h to LDR211 for Device for transmission command data.
3 Change the trigger condition LM200 from 0 to 1 to start command transmission.
The transmission data is as follows.
• When data transmission is successfully completed, the Completed Device LM201 changes to 1.
• When the value of each bit of address+0 for Status Device LDR220 is 0, transmission is completed without an error.
Item Setting
Protocol Name Sample 2
Receiving Character Time Out 30 (×100 msec)
Item Setting
Comment TXD command
Command Type Transmit
Completed Device LM201
Status Device LDR220
Transmission Wait 0 (×100 msec)
Trigger Condition While ON, LM200
Command
Data Settings dialog box settings
Constant
(Hexadecimal)
'05'
Registering
Constant
(Character)
10: "AB", 20: "CD", Index Device: LDR200
Device
No Conversion, from Upper byte, Number of bytes: 2,
Words: 2
Device: LDR210
BCC
Start Calculation Position: 1, End Calculation Position: 0,
XOR, Binary (HEX) to ASCII, 2 bytes
Constant
(Hexadecimal)
'0D0A'
AB 10:
CD 20: Index Device
LDR200=10
Data
Index No.
Number of Registering Constants: 2
Transmission data
A
(41h)
B
(42h)
Order of transmission
3
(33h)
4
(34h)
1
(31h)
EQN
(05h)
2
(32h)
CR
(0Dh)
LF
(0Ah)
A
(41h)
B
(42h)
0
(30h)
2
(32h)
BCC
Transmission data:
Constant
(HEX)
Registering
Constant (Character) Device
Command settings:
Constant
(HEX)