Siemens SIMATIC RF1070R - Page 13

2 Engineering of the STEP 7 Program
Reading out UID with SIMATIC RF1070R
Article ID: 109780625, V1.0, 09/2020
13
© Siemens AG
2020 All rights reserved
Parameter
The figure and table below show the call interface of the function block "ReadUID".
Figure 2-3
Table 2-3
Icon
Data type
Description
EN
BOOL
Enable input. Only relevant in FDP and LAD
representation
reset
BOOL
Starts the parameterization of the CM1241 RS232
communication module and the resetting of the
SIMATIC RF1070R reader.
enable
BOOL
Starts the read job.
• As long as "enable" remains set, the job handling
is active and new UIDs can be continuously read
and processed.
• The job is ended when the "enable" parameter is
reset.
Note:
Before enable is set the first time, a "reset" must
occur.
rfData
typeRFData
• For addressing the configured CM1241 RS232
communication module.
• Reference to global memory range for receive
data.
ENO
BOOL
Enable output. Only relevant in FDP and LAD
representation
ndr
BOOL
• New UID has been read and stored in the
"rfData" memory range.
• Only TRUE for one cycle.
valid
BOOL
• Is set as long as valid output values are available
and the "enable" input is set.
• Reset as soon as an error is pending or the
"enable" input is reset.
busy
BOOL
• The "ReadUID" function block is active.