LevelMaster 7100 User manual 2105835 Rev AA | 40In hazardous locations, the laptop must be connected through the barrier board. No direct connection to the LevelMaster ispermitted.IMPORTANT NOTES: Electronics boards can be removed from the enclosure for configuration purposes ifremaining at the top of the tank during configuration is not possible or safe. The cables designed to connect thelaptop to the board have batteries which power the LevelMaster during local connection, eliminating the need foran external power source. If boards are removed from the LevelMaster for configuration, they can be reinstalled forfinal wiring and verification. Consider removing the board from the enclosure for convenience during initialconfiguration. The removable terminal connectors can be easily unplugged and inserted back in without disturbingthe wiring previously completed.Preparing cables for local connectionThe cables required for connecting the laptop to the LevelMaster depend on the board version. Table 4: Cables and adapters fordirect connection to the LevelMaster, describes several options. The pictures of the assembly of the cables is replicated in thissection for convenience. The converter cables, adapters, and USB adapters must be all be connected to be able to attach thelaptop to the LevelMaster. The cables and adapters described in this section are included as examples. Additional cable lengthsand variations are available for purchase from ABB.To assemble the cable and adapters for connection:1. Connect the RS-485-to-RS-232 converter to the cable adapter.a. For boards part number 2104836-001, connect the RS-485-to-RS-232 converter (2100241 – 005) to the cableadapter (2100250 – 002), the cable with two separate terminal connectors at one end (Figure 36).Connect to Level Master boardP/N 2104836-001Cable AdapterP/N 2100250-0029V BattRS-232/RS-485 converterP/N 2100241-005Connect to laptop:1. Serial or2. USB (using additional adapter)+Figure 36: Cable and adapters for local communications (2104836-001 boards)b. For boards part number 2018546-005 (legacy boards), connect the RS-485-to-RS-232 converter (2100241 - 002) tothe cable adapter (2100250 – 001), the cable with a single terminal connector at one end (Figure 37).Connect to LevelMasterP/N 2018546-005Cable adapterP/N 2100250-001RS-485-to-RS-232 Converter cableP/N 2100241-0029V Batt9V BattConnect to laptop:1. Serial or2. USB (using additional adapter )Figure 37: Cable and adapters for local communication (2018546-005 boards)
