Product Description:
The Data Communication Module (DCM) enables the TI Series 405 PLCs to interface with the Operator Station. The DCM supports the Hostlink protocol either Master/Slave or Peer-to-Peer. In the Master/Slave configuration, the Operator Station will be the Master device and the DCM will be the slave device in both the Point-to-Point and the Multidrop configurations. The DCM has a serial connection that will connect to the multi-drop network or directly point-to-point to the Operator Station.
The Operator Station can be used with the programmable controllers in the Texas Instruments (TI) 500 Series (520, 530, 560, and 565), 405 Series (425, 430, and 435), and 305 Series (315, 325, and 330) using the TI driver on the TIHL (Host Link) driver. The driver takes responsibility for communications to the programmable controller, generating the protocol necessary to request information from, and send information to, the PLC. The PLC simply responds to these requests and commands. Ladder logic is required in the PLC to support bit writes to the TI 405 and TI 305 PLCs. Connction to PLCs using the TI or TIHL driver can be accomplished by a direct connection to the
RS232 port, the Data Communication Module (DCM), or the Data Communications Unit (DCU). The RS232 connection can only be used Point-to-Point. RS422 has multi-drop capabilities.
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