Hello

I am still waiting for the hardware but want to simulate it and program the control flow. What is not clear for me is how to communicate (acknowledge) to the camera that the code is received, and that it should publish the second code (2 codes in my application). In the end I would expect to send acknowledge again to state that all current codes are received. Document to OIDCyclic says:

2.3.2 Start the trigger
Start capturing an image ("trigger") as follows:

1 Set the bit "TRG" in line 7.
2 After evaluating as OK (line 13) or N_OK (line 15), the result data will be output.
3 The data are valid if a rising edge is present at the parameter "NDR" (line 16).
4 The read result is output in the "Result" area starting with line 24.

HW_ID_STATUS_CONTROL      Input      HW_SUBMODULE      Hardware ID of the module "Control byte/status byte"

HW_ID_USERDATA      Input    HW_SUBMODULE    Hardware ID of the module "User data"

PROGRAM            Input    Byte        Program number 1-15 Note: In the event of a program change, the DISA bit must be set.

DISA            Input    Bool        Disable: Disable manual control in the WBM
RESET            Input    Bool        Reset: Reset processing unit error or FB error.
TRG            Input    Variant        Trigger: Record image
RECV            Input    Variant        Receive range for the result string. Only an "Array of Byte" is permitted; the array must be at least as large as the largest expected result.

IN_OP            Output    Bool        In operation: 0 = Error message is displayed, 1 = Device functioning, no error

RDY            Output    Bool        Ready: 0 = Device startup or device in Stop, 1 = Device in processing mode (Run)
OK            Output    Bool        Processing result: Code was localized and decoded.
MATCH            Output    Bool        Processing result: Code matches the trained code.
N_OK            Output    Bool        Code was not legible.
NDR            Output    Bool        New Data Received: new data have been received. Note: This parameter is only available for the length of one CPU cycle.

ERROR            Output    Bool        Error: 1 = An error has occurred.
ERRCODE            Output    Word        Status and error information. If the error bit is active, an error code will be output here. See chapter Troubleshooting.

PROGRAM_OUT        Output    Byte        Number of the program currently selected on the reader
LENGTH            Output    Int        Length of the result

Hello,

there is no acknowledgement. The new result comes automatically and overwrites the old result.

 Okay. So lets say two codes are on a label being scanned.

1) There is a trig
2) OK turns true
3) the RECV [ ] parameter updates
4) NDR becomes true for the lenght of one CPU cycle.

After a certain time (what time?) steps 3-4 repeat for the second code? How does the scanner know (or does it care) that a code is received?

Cheers

AutoGen_3917266

Hello,

there is no acknowledgement. The new result comes automatically and overwrites the old result.