IDEC High Performance Series - Manual (Page 132)

5 User Communication
3-30 WindO/I-NV2 User’s Manual
■ Status Device
Specify the destination word device for the transmitted or received data size and error information. Error information
and command data size is stored at the beginning of the configured device address. When data transmission or
receiving has not successfully completed, the value of each bit changes to 1. The bits of the Status Device changes to
0 when the trigger condition is satisfied and they are not changed to 0 automatically. When Always Enabled is
selected in Trigger Condition of receive command, the value of the Status Device is kept as long as a Clear
command is not executed.
You can only specify an internal device.
Click to display the Device Address Settings dialog box. For the device address configuration procedure, refer to
Chapter 2 “5.1 Device Address Settings” on page 2-67.
Example: When LDR110 is configured as Status Device
When TXD is selected as Command Type:
Address Bit Function Cause Solution
+0
0 BCC Error
• The Calculation Start Position and Calculation
End Position are not stored in 1 frame.
• The Calculation End Position is set before
Calculation Start Position.
Change the Calculation
Start Position and
Calculation End Position
settings.
• When Calculation Type is Modbus ASCII
(LCR), the data size from Calculation Start
Position to Calculation End Position is odd
bytes.
• The data contains data other than ASCII (30h
to 39h, 41h to 46h) data.
Change the Calculation
Start Position and
Calculation End Position
settings and the
transmission data.
1, 2 Reserved
3
Registering Constant
Data Error
When data type is Registering Constant
(Character) or Registering Constant
(Hexadecimal), the value of the Index Device
does not match the Index No. of the registered
Registering Constant.
Change the data stored in
the Index Device.
4 Reserved
5
Use Reference Device
Data Error
When data type is Device and the Use
Reference check box is selected, the device
address in which the value of the Reference
Device is stored as offset has exceeded the valid
range.
Change the value stored in
the Reference Device.
6
Device Data Variable
Specification Error
When data type is Device, the Variable check
box is selected and Device is selected, the
value of device is negative or exceeds the
setting (number of bytes x number of words).
Change the value of device
to a positive value or to a
value that does not exceed
the setting (number of bytes
x number of words).
7
Transmission
Command Abandon
Error
When transmitting data after the Trigger
Condition is satisfied, the command with the
same Command No. was transmitting data or
transmission (transmission is not completed).
Increase the time interval
for starting transmission.
8 to 15 Reserved
Address Function Description
+1 Transmission Data Size (bytes) Stores the size of transmission data.
LDR110
LDR111 Error information and time out information
Transmitted or received data size (bytes) (Starting address) +0
+1
When the Error Information bit changes to 1, data is not transmitted, and the Transmission Completed
Device does not change to 1.