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Gateway Mode

Note:

When you use Gateway Mode, do not install the communication option in slave drives. If you install a communication option in a slave drive, the drive commands and responses will not synchronize.

In gateway mode, you can use one communication option to communicate with more than one drive.

You can use one communication option to connect a maximum of five drives to the field bus communications. Refer to Figure 1 for more information.

When you install a communication option on the master drive, you can use the RS-485 communication terminals to transmit data to slave drives that do not have a communication option.

Figure 1. Connection Examples in Gateway Mode
Table 1. Specification

Item

Specification

Applicable options

All options that support the MEMOBUS access function (for example, PROFIBUS-DP, PROFINET, EtherNet/IP, EtherCAT)

Compatible Products

Drives that can set F6-16 [Gateway Mode] 1

Number of connected drives

Maximum: 5 units

Communication specifications

MEMOBUS/Modbus (RTUmode) communications

Commands/responses

The controller can send this data to each drive (Drive 0 to Drive 4):

  • Control commands: Run commands and frequency references

  • Control responses: Output frequency and drive status (during run, faults)

  • Read and write parameters

  • Read monitors

Synchronous control

Not supported
 
Note:

  • The communication speed in gateway mode is slower than the speed in fieldbus communications. Make sure that the speed is acceptable for your system.

  • Response speed with the communication option is slower than with point-to-point communications.

  • Set H5-03 [Communication Parity Selection] to the same value on the master drive and slave drives.