CV500BSC51 Omron, CV500BSC51 Datasheet - Page 55
CV500BSC51
Manufacturer Part Number
CV500BSC51
Description
Programmable Logic Controller
Manufacturer
Omron
Datasheet
1.CV500BSC51.pdf
(101 pages)
Specifications of CV500BSC51
Peak Reflow Compatible (260 C)
No
Leaded Process Compatible
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Slave Mode Functions
5-2-2
38
Receiving Data in Slave Mode
1,2,3...
When the GP-IB Interface Unit is operating in Slave mode and there is a read
request sent from the system Controller to the Unit, the Unit will automatically
start receiving data.
Use the following procedure to receive data in Slave mode.
1. Before receiving data, write the following 3 settings into buffer memory
2. Data received from the other device will be stored in buffer memory. At this
3. When the data has been received, the Data Read Completed Flag (bit 02
4. Read the data in the buffer memory from the ladder program.
Use the INTELLIGENT I/O READ and INTELLIGENT I/O WRITE instructions
(IORD(222) and IOWR(223)) to read and write data in the Unit’s buffer mem-
ory.
Buffer memory
Talker Specification
Received Flag
(Bit 13 of n+7)
Send Data Request Bit
(Bit 01 of n)
Data Send Completed
Flag (Bit 01 of n+5)
• Reception delimiter specification
• Timeout monitor time
• Number of bytes to receive
CPU Unit
from the ladder program. (It isn’t necessary to make these settings if they
are the same as the settings in the allocated DM area words.)
point, the LSTN Indicator will be lit.
of n+5) will go ON and the number of bytes received will be recorded in
n+6.
Command mode
(Talker specification)
2. Talker Specification
3. Write
4. Turn ON the
6. The Data Send
Received Flag goes
ON.
transmission data
with IOWR(223).
Send Data
Request Bit.
Completed Flag
goes ON.
Turned ON
by Unit.
GP-IB
Interface Unit
Slave mode
Buffer
memory
Write the transmission data
and transmission parameters.
Turned ON by
ladder program.
n = CIO 2000 + (10
Data transfer
Turned ON
by Unit.
1. The GP-IB
5. The
Interface Unit is
specified as the
Talker.
transmission
data is sent to
the device.
Turned OFF
by Unit.
Turned OFF by
ladder program.
unit number)
Turned OFF
by Unit.
Controller
GP-IB
Device
Section 5-2
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