Figure 41: Hmi Connector; Figure 42: Dip Switch 1 - ABB 266 MODBUS User Manual

7. If the new module does not have an HMI connector installed, carefully remove the connector from the old electronics
module and insert it into the new electronics module (Figure 41). Go to section 5.5, Replacing the HMI connector, for
additional information.
8. Install the new electronics module.
a. Attach ribbon cable to the new module (Figure 40, page 51).
b. Push the new module into place.
c. Secure the module with the fastening screws (Figure 39, page 51).
9. Disable write protection by flipping switch 5 to the down (OFF) position (Figure 42). DIP switches are numbered from left to
right starting with 1.
52 | 266 MODBUS® multivariable transmitter User manual 2105216 Rev. AB

Figure 41: HMI connector

Figure 42: DIP switch 1

5 Service and maintenance