Sysmac Bus/2 Area; Link Area - Omron SYSMAC CV Series Operation Manual

CIO (Core I/O) Area

3-3-3 SYSMAC BUS/2 Area

3-3-4 Link Area

46
Work words and bits are reset when power is interrupted or PC operation is
stopped, but they are not reset when a FALS error instruction is executed in the
program.
PC
CV500
CVM1-CPU01-EV2
CV1000
CVM1-CPU11-EV2
CV2000
CVM1-CPU21-EV2
All
I/O bits allocated in the SYSMAC BUS/2 Area correspond to I/O points on I/O
Terminals (group-1 and group-2 Slaves), Units mounted to Slave Racks
(group-3 Slaves), or other Units connected to SYSMAC BUS/2 Remote I/O Mas-
ter Units (RM/2). Up to four Masters can be connected to the CV1000, CV2000,
CVM1-CPU11-EV2, or CVM1-CPU21-EV2 (RM/2 #0 to RM/2 #3), and up to two
Masters can be connected to the CV500 or CVM1-CPU01-EV2 (RM/2 #0 and
RM/2 #1). The total number of I/O points required for I/O Terminals, Units on
Slave Racks, and other Units in the SYSMAC BUS/2 Remote I/O System must
not exceed 2,048 (128 words) for the CV1000, CV2000, CVM1-CPU11-EV2, or
CVM1-CPU21-EV2, and 1,024 (64 words) for the CV500 or CVM1-CPU01-EV2.
SYSMAC BUS/2 Area address allocation can be customized with the PC Set-
up using the CVSS/SSS. The first word allocated to the group-1, group-2,
and group-3 Slaves, as well as the size of each of these areas, can be
changed. The following table shows the default address allocations.
RM/2 # Group-1 Slaves*
0 CIO 0200 to CIO 0249
1 CIO 0400 to CIO 0449
2 CIO 0600 to CIO 0649
3 CIO 0800 to CIO 0849
*Group-1 Slaves allocated up to 64 I/O points. Group-2 Slaves are medium-sized Units
allocated up to 128 I/O points. Group-3 Slaves are used to form Slave Racks.
As with I/O area allocations to CPU, Expansion CPU, and Expansion I/O
Racks, word allocation begins with the Slaves connected to the Master with
the lowest unit number, RM/2 #0, regardless of the order that the Masters are
mounted. Likewise, word allocation to Units connected to RM/2 #0 begins
with the Slaves that have the lowest unit numbers, regardless of the order
that the Slaves are mounted.
Up to 8 Slave Racks can be connected to each RM/2 Master. Word address-
es are assigned to Units on Slave Racks in the order in which they are
mounted left to right. Refer to the SYSMAC BUS/2 Remote I/O System
Manual for details on word allocation to Slaves and Units on Slave Racks.
After the I/O Table has been registered or edited, an "I" will appear before
input bit addresses and a "Q" will appear before output bit addresses on
CVSS/SSS displays. Refer to the CVSS/SSS Operation Manuals for details
on the PC Setup.
The Link Area is used as a common data area to automatically transfer in-
formation between PCs. This data transfer is achieved through data links in
Work words
CIO 0032 to CIO 0199
CIO 0064 to CIO 0199
CIO 0128 to CIO 0199
CIO 1964 to CIO 1999
CIO 2064 to CIO 2299
Group-2 Slaves*
CIO 0250 to CIO 0299
CIO 0450 to CIO 0499
CIO 0650 to CIO 0699
CIO 0850 to CIO 0899
Section 3-3
Work bits
CIO 003200 to CIO 019915
CIO 006400 to CIO 019915
CIO 012800 to CIO 019915
CIO 196400 to CIO 199915
CIO 206400 to CIO 229915
Group-3 Slaves
CIO 0300 to CIO 0399
CIO 0500 to CIO 0599
CIO 0700 to CIO 0799
CIO 0900 to CIO 0999