CV500BSC51 Omron, CV500BSC51 Datasheet - Page 19

• Manufacturer Part Number: CV500BSC51
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500BSC51

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Features
1-1
Conforms to the
IEEE-488-1978
Standards
Control GB-IP
Communications
from the Ladder
Program
Master and Slave
Modes
Master Mode
Slave Mode
2
Features
The CS1W-GPI01 GP-IB Interface Unit connects GP-IB devices to a CS-
series PLC to provide communications between the GP-IB devices and the
CS-series PLC.
The GP-IB Interface Unit has the following features.
The GP-IB Interface Unit conforms to the standard IEEE-488-1978 interface
specifications. Devices equipped with an IEEE-488 interface, such as comput-
ers or measurement devices, can be connected to a CS-series PLC through a
GP-IB cable to allow data transfers to and from the PLC.
When the GP-IB Interface Unit is installed, it is easy to transfer data and con-
trol the devices connected to the Unit from the CPU Unit’s ladder program.
To transfer data and control the devices connected to the Unit, just read and
write data to the GP-IB Interface Unit’s buffer memory.
The INTELLIGENT I/O READ and INTELLIGENT I/O WRITE instructions
(IORD(222) and IOWR(223)) are used to read and write data in the buffer
memory.
The GP-IB Interface Unit can operate as a Controller in Master mode or as a
Talker or Listener in Slave mode.
The GP-IB Interface Unit can perform the following functions as a Controller.
The GP-IB Interface Unit can perform the following functions as a Talker or
Listener.
• Control Connected Devices
• Send Data
• Receive Data
• Receive SRQ Message (Interrupt Response)
• Send Data
• Receive Data
To perform control operations such as Device Clear and Device Trigger,
write the message type and device address to the GP-IB Interface Unit’s
buffer memory by executing IOWR(223) in the CPU Unit’s ladder pro-
gram. When the necessary data has been written to the buffer memory,
turn ON the Send Interface Message Request Bit.
To send data to a connected device, write the transmission data and
device address to the GP-IB Interface Unit’s buffer memory with
IOWR(223) and then turn ON the Send Data Request Bit.
To read data from a connected device, write the sending and receiving
devices’ addresses to the GP-IB Interface Unit’s buffer memory with
IOWR(223) and then turn ON the Read Data Request Bit. When the data
has been received, the Data Read Completed Flag will be turned ON.
Execute IORD(222) to read the received data from the GP-IB Interface
Unit’s buffer memory.
An external interrupt task can be started in the CS-series PLC when an
SRQ message is received.
If there was a Send Request from the Controller, transmit data to the con-
nected device by writing the transmission data to the GP-IB Interface
Unit’s buffer memory with IOWR(223) and then turning ON the Send Data
Request Bit.
If there was a Read Request from the Controller, data received from a
connected device will be stored in the GP-IB Interface Unit’s buffer mem-
Section 1-1