40
Simple I/O Allocation
Section 4-2
• User-set allocations
Procedure Overview
Note
The sizes of slave I/O data allocated in the master is listed below. Allocate I/O
correctly within the maximum allocation sizes.
DeviceNet Communications Unit allocation sizes:
IN Area: Up to 200 bytes (100 words)
OUT Area: Up to 200 bytes (100 words)
CS/CJ-series Master Unit allocation sizes:
IN Area: Up to 200 bytes (100 words)
OUT Area: Up to 200 bytes (100 words)
CVM1/CV-series, C200H, C200HX/HG/HE Master Unit allocation sizes:
IN Area: Up to 64 bytes (32 words)
OUT Area: Up to 64 bytes (32 words)
4-2
Simple I/O Allocation
4-2-1
Setting Allocation Data
Simple I/O allocation is used to allocate I/O in the master without using a Con-
figurator, and to allocate in the master the Temperature Controller set points
(SP), process values (PV), alarm output status, and other basic data only.
Set simple I/O allocation by turning ON pin 1 of the DIP switch of the
DeviceNet Communications Unit.
Memory is allocated to data, such as SP and SV, in the order of unit numbers
and channels of the Temperature Controllers up to the Temperature Controller
with the highest communications unit number set on the front of the Unit (MAX
No.). It is assumed that there are no Temperature Controllers with communi-
cations unit numbers higher than this value.
• TC2 Selected (DIP switch pin 2 OFF):
IN Area: 16 to 46 words (= 16 + n
×
2 words)
OUT Area: 8 to 38 words (= 8 + n
×
2 words)
Steps
Simple I/O allocation
I/O allocations from the Configurator
Step 1
Set the allocation
data.
• Turn ON pin 1 of the DIP switch.
• Use DIP switch pin 2 to set the model of
the Temperature Controller to be con-
nected.
• Set the highest communications unit
number.
Turn OFF pin 1 of the DIP switch.
IN Area: 1 block
OUT Area: 1 block
IN Area: 2 blocks
OUT Area: 1 block
Using the Configurator, create the allocation
data in the Edit Device Parameters Window for
the DeviceNet Communications Unit.
---
Using the Configurator, set
the connections using
user definitions in the Edit
Device Parameters Win-
dow for the Master Unit.
Step 2
Allocate the data
in the master.
Fixed allocations
Fixed allocations
cannot be used if
11 or more TC4
Units are used.
User-set allocations
Using the Configura-
tor, allocate I/O from
the Edit Device Param-
eters Window for the
Master Unit under
I/O
Allocations
, or
I/O Allo-
cations through Allo-
cated DM words
.
Fixed allocations
User-set allocations
Using the Configurator,
allocate I/O from the Edit
Device Parameters Win-
dow for the Master Unit
under
I/O Allocations
, or
I/O Allocations through
Allocated DM words
.
Summary of Contents for EJ1 - 07-2008
Page 3: ...iv...
Page 19: ...xx...
Page 33: ...14 Initial Temperature Controller Settings Section 1 4...
Page 53: ...34 Wiring the Temperature Controllers Section 3 4...
Page 101: ...82 Ladder Programming Examples Section 4 6...
Page 143: ...124 Sending Explicit Messages Section 6 5...
Page 155: ...136 Message Communications Characteristics Section 7 2...
Page 163: ...144 Maintenance Section 8 2...
Page 189: ...170 Allocation Numbers for Configurators Manufactured by Other Companies Appendix B...
Page 197: ...178 Index...