R8-NC3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax:
+81(6)6659-8510 E-mail: [email protected]
EM-9726 P. 6 / 7
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DATA ALLOCATION MODE 2
• Output Data
The figure below shows the allocation of data sent from
the power / network module to the master.
RWr n+0
0_CH1
Module
0_CH2
1_CH1
1_CH2
2_CH1
2_CH2
3_CH1
3_CH2
4_CH1
4_CH2
5_CH1
5_CH2
6_CH1
7_CH1
6_CH2
7_CH2
+2
+4
+6
+8
+10
+12
+14
31_CH1
31_CH2
+62
0
15
• Input Data
The figure below shows the allocation of data sent from
the master to the power / network module.
0_CH1
Module
0_CH2
1_CH1
1_CH2
2_CH1
2_CH2
3_CH1
3_CH2
4_CH1
4_CH2
5_CH1
5_CH2
6_CH1
7_CH1
6_CH2
7_CH2
+2
+4
+6
+8
+10
+12
+14
31_CH1
31_CH2
+62
0
15
RWw n+0
16 × m (m = cyclic expansion setting) data areas are available for the R8-NC3.
Field input data is set at the module’s output data area. The input data area is also secured though not used for an input
module. Above figure shows the area when cyclic expansion is “4”, however the module address is up to 15 when cyclic ex-
pansion is “2”.
• Module Status
RX (n+0) 0 through RX (n+1) 15 indicate that modules are mounted in each slot.
0: mounted; 1:not mounted.
15
0
Module 0
Module 1
Module 2
Module 15
15
0
Module 16
Module 17
Module 18
Module 31
RX(n+0)
RX(n+1)
• Ready Signal
When cyclic expansion is “2”, RX (n+13) 11 is assigned to Ready signal, when cyclic expansion is “4”, RX (n+27) 11 is assigned
to Ready signal, which turns to “1” when the internal bus is in normal conditions.
