Siemens SIMATIC MV440 Operating Instructions Manual page 314

Process interfacing via an automation system (PLC, PC)
10.6 Control via TCP/IP and RS-232
Code No Cnt n and Code No
Code No Cnt n must always be 1. Code no. must match the code number that is in
processing mode.
Code Idx Cnt c
● With an application in which no 1D/2D codes are read, Code Idx Cnt = 0 must be set.
● If code Idx Cnt ≠ 0, this value matches the number of code match strings in the frame;
with a non-multicode application, this value is 1. Depending on the code Idx Cnt c, then
code Idx , string length cl and the string follow c times.
Code Idx, String length cl and String cm
Code Idx is the index of the code to which the new match string will be assigned. String
length cl corresponds to the length of the following match string cm.
ROI ID Cnt r
● With an application in which no plain text is read (OCR), ROI ID Cnt r = 0 must be set.
● If ROI ID Cnt r ≠ 0, this value corresponds to the number of OCR ROI match strings in the
frame. Depending on ROI ID Cnt r, ROI ID, String length rl and String rm follow r times in
the frame.
ROI ID, String length rl and String rm:
● ROI ID corresponds to the number of the OCR ROI match strings to be assigned to the
new match string.
● String length rl corresponds to the length of the following match string rm.
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SIMATIC MV420 / SIMATIC MV440
Operating Instructions, 04/2013, A5E02371045-06