Industry Automation and Drive Technologies - SCE
5.8Basics of Entries at Command Block FC11
The values for DB47 are specified by means of the input variables of FC11.
One UDT21 is used for each request or command.
Data View of the UDT21
Command Overview
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| Normal |
| Chained* |
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| 01 |
| 41 |
| Write data to MDS |
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| 02 |
| 42 |
| Read data from MDS |
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| 03 |
| 43 |
| Initialize MDS |
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| 04 |
| 44 |
| Reader status |
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| 06 |
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| NEXT |
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| 08 |
| 48 |
| END; end communication with the MDS |
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| 0A |
| 4A |
| Aerial on/off |
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| 0B |
| 4B |
| MDS status |
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| *) Not all readers or IM modules support chained commands. Note the information in the MOBY |
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| manuals for configuration, installation and service. |
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Writing data to the transponder |
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| Command | Sub_command |
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| address_MDS [hex] | DAT_DB [dec] | Comment |
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| [dec] |
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| 01 | - |
| 1 to 32767 * |
| 0000 to FFFF | Pointer to the |
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| Length of the |
| Starting with this | user data that |
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| MSD data to be |
| start address, the | is to be written |
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| written |
| data is written to the | to the MDS |
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| MDS |
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Reading data from the transponder |
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| Command | Sub_command |
| length |
| address_MDS | DAT_DB | Comment |
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| [dec] |
| [hex] | [dec] |
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| 02 | - |
| 1 to 32767 * |
| 0000 to FFFF | Pointer to the |
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| Length of the |
| Starting with this | user data. |
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| MSD data to be |
| start address, the | Here, FB45 |
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| read |
| data is read from | stores the |
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| the MDS | MDS data that |
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TIA Training Document |
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| Page 36 of 65 |
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Module E11 |
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Status: 01/2010 |
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| Radio Frequency Identification (RFID) with SIMATIC | ||||||
RF180C |
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