Mitsubishi FX3U-32DP, User Manual

Page: 24 / 74

18
FX
3U
-32DP PROFIBUS-DP Interface Block
User’s Manual
1 Introduction
1.4 FROM/TO Execution Time
1.3.2 Applicable PLC
The FX
3U
-32DP functions with an FX
3G
/FX
3GC*1
/FX
3U
/FX
3UC*1
/FX5U
*2
/FX5UC
*2
PLC. To set up the 32DP
with an FX
3G
/FX
3GC*1
/FX
3U
/FX
3UC*1
/FX5U
*2
/FX5UC
*2
PLC, connect the 32DP’s extension cable to the
PLC’s extension port.
The 32DP occupies 8 points on either input or output of the PLC extension bus. The FX
3U
/FX
3UC*1
/FX5U
*2
/
FX5UC
*2
PLC has a maximum of 256 controllable I/O points, whereas the maximum connectable special
function blocks for a single FX
3U
/FX
3UC*1
/FX5U
*2
/FX5UC
*2
PLC is 8 units. The FX
3G
/FX
3GC*1
Series PLC
has a maximum of 128 controllable I/O points, whereas the maximum connectable special function blocks for
a single FX
3G
/FX
3GC*1
PLC is 8 units.
*1. An FX
2NC
-CNV-IF or FX
3UC
-1PS-5V is necessary to connect to the 32DP with the FX
3GC
/FX
3UC
Series PLC.
However, the 32DP cannot be connected to the FX
3UC
-32MT-LT(-2).
*2. An FX5-CNV-BUS or FX5-CNV-BUSC is necessary to connect to the 32DP with the FX5U/FX5UC PLC.
1.4 FROM/TO Execution Time
The PROFIBUS cycle time and FROM/TO instruction operates asynchronously. If data is written to the 32DP
in the PROFIBUS cycle time, this data will move to the system area on the next PROFIBUS cycle time.
Reference
The FROM/TO Execution Time varies as follows, depending on the data amount to be transferred.
FROM/TO Execution Time details
1) FX
3U
/FX
3UC
Series PLC
The following table is also applicable to the other instructions accessing the 32DP BFMs from FX
3U
/
FX
3UC
Series PLC.
n: The number of transferred data
2) FX
3G
/FX
3GC
Series PLC
n: The number of transferred data
Note
• The execution times above are approximate values for the FX
3U
-32DP.
• The FROM/TO Execution Time varies depending on each special function block.
• It is not necessary to check all DP-Slaves' cyclic I/O data in a single PROFIBUS Cycle Time.
PLC Type Version
FX
3G
Series PLC Ver. 1.00 or later
FX
3GC
*1
Series PLC
Ver. 1.40 or later
FX
3U
Series PLC Ver. 2.21 or later
FX
3UC
*1
Series PLC
Ver. 2.21 or later
FX5U PLC *2 Ver. 1.014 or later
FX5UC PLC
*2 Ver. 1.014 or later
FNC
No. Instruction
Execution time in ON status (
µ
s) Execution time in OFF status (
µ
s)
Note
16-bit instruction 32-bit instruction 16-bit instruction 32-bit instruction
FX
3U
-32DP
78 FROM 15 + 250n 15 + 320n 0.585 1.105 BFM#100 to #171
79 TO 15 + 280n 15 + 415n 0.585 1.105 BFM#300 to #371
FNC
No. Instruction
Standard mode Extension mode
Note
Execution time in
ON status (
µ
s)
Execution time in
OFF status (
µ
s)
Execution time in
ON status (
µ
s)
Execution time in
OFF status (
µ
s)
16-bit
instruc-
tion
32-bit
instruc-
tion
16-bit
instruc-
tion
32-bit
instruc-
tion
16-bit
instruc-
tion
32-bit
instruc-
tion
16-bit
instruc-
tion
32-bit
instruc-
tion
FX
3U
-32DP
78 FROM
20 +
225n
25 +
295n
0.61 0.61
25 +
225n
25 +
295n
0.8 0.8 BFM#100 to #171
79 TO
20 +
290n
25 +
420n
0.61 0.61
25 +
290n
30 +
420n
0.8 0.8 BFM#300 to #371