Leuze electronic MA 258i Operating Instructions Manual page 80

Commissioning and configuration
 Then, via the Change button, select the input/output data length of the module from a
list of possible combinations by clicking on Connection.
Notice!
The available lengths (4, 8, 12, 16, 20, 32, 64, 128, 240 bytes) of the input/output data are
stored here in "fixed" combinations. They cannot be freely combined. The MA can only pro-
cess ONE combination (connection).
Please select the suitable combination for the data length and the connected device. For
further information, see chapter 16 "Specifications for Leuze end devices".
Figure 12.10: Select combination for the lengths of the input and output data
Notice!
Since the combination of Produced/Consumed data contains 2 bytes for the control and
status bytes, the actual user data length is always 2 bytes smaller than specified in the
selected combination.
E.g., when using the combination with 12 bytes In/12 bytes Out, there are effectively 10 bytes
available for user data on the Leuze device after subtracting the 2 bytes for status and control
bytes.
Recommendation
A combination with 4 bytes of output data length is sufficient for most output data.
A longer length is needed, for example, if a BCL bar code scanner is to be configured by
means of PT-sequences, or an RFID transponder is to be described. In these cases, larger
combinations are usually advisable.
 Select the appropriate combination and transmit the settings to the device.
78 MA 258i Leuze electronic