Allen-Bradley SLC 500

226 •
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• Siemens QUICKDESIGNER
Assigning Parameters to DX 2
DX 2 contains the link type and the pointers to the required parameters and parameter sets. The
following table shows the recommended values when assigning parameters to DX 2. The assignment in
DX 2 begins at DW 0. All the numerical values are in hex.
DW Parameter Significance
04D41 MA
1 534B SK
2 5832 X2
3 0020 RK 512 computer link
4 440A Static Parameter in DB10
5 0004 from DW4
6 0000 Dynamic Parameter Sets (not used)
7 0000
8 0000 Job Mailbox (not used)
9 0000
10 0000 reserved
11 0000 reserved
12 0000 reserved
13 0000 reserved
14 4D00 SCB IN FLAG
15 0006 FLAG WORD 6
Static Parameter Set
In the static parameter set, you must enter the parameters for the physical and data link layers. The
following table shows the recommended values to enter in the data block for the static parameter set.
The parameter assignment begins at the DW specified in DX 2. (In this example the DW is DB10) All
numerical values are shown in hex.
DB10 Parameter Significance
4 0008 Transmission speed: 9600
5 0002 Parity: Even
6 0008 Bits: 8 bits per character
7 0001 Stop bits: 1
8 0000 reserved
9 0002 Mode: RK 512 3964R procedure
with default values
10 0001 Priority: High
11 00FF Character delay time: 2.55 sec.
12 010A Ack. delay time: 2.66 sec.
13 0003 Connect attempts: 3
14 0005 Repetitions: 5
SIMATIC 3964R Tag Variables
Tag variables are registers or bits in your PLC that make the operators on the target display active.
Below are the formats for memory and data block type variables.