Modbus TCP Interface 6 - 3
Barcode Transfer Control Registers
Register Type: Holding
Register Range: 1 - 3
Access Functions: (03) Read Holding Registers
(06) Write Single Register
(16) Write Multiple Registers
The Barcode Transfer Control register is used for handshaking during barcode transfer by the controller. The
format of the register data follows that described in Barcode Output Data on page 2-6. The register mapping of
each Output Data field is defined in Table 6-4.
Transferring Barcode Data from the EA3600
The Modbus TCP interface supports Basic Mode and Handshake Mode transfers from the EA3600 to the
controller. Fragmentation Mode is not required because the Modbus register data supports up to 4096 bytes of
barcode data which is the largest barcode that the EA3600 interface supports.
See Reading Barcode Data from the EA3600 on page 3-2 for details on the barcode transfer mechanisms.
Example Barcode Transfer Register Commands
When using the Modbus TCP protocol, all interaction between the controller and EA3600 is done through register
read and write commands. This section discusses the register command sequences required to perform typical
barcode transfers.
207 1 Length
208 2048 Data
Table 6-3 Status and Barcode Data Registers
Status and Barcode Data Register Mapping
Register Address Register Count Field
NOTE The Input Data field length is 4096 bytes.
Table 6-4 Register Mapping of Each Output Data Field
Barcode Transfer Control Register Mapping
Register Address Register Count Parameter
1 1 Control Register
2 1 ACK Counter
3 1 UI Action Code
To Next Page
Loading...
General