Rice Lake CLS-920i, Installation Manual

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4 CLS-920i Installation Manual
1.3 920i Digital HMI Indicator
Features of the basic 920i include:
• Support for A/D scale or serial scale inputs. The maximum number of scale inputs is 28; these can be
combined to represent up to 32 scale configurations.
• Four digital I/O channels on main board, each configurable as either input or output.
• Four serial ports on main board (Ports 1–4) support duplex RS-232 up to 115200 bps. Port 2 supports
hardware handshaking and remote keyboard input; Ports 3 and 4 support 20mA output; Port 4 supports
2-wire RS-485 communications.
• External DB-9 and DIN-8 connectors for serial connection to a PC and attachment of PS/2-type remote
keyboard.
1.3.1 Front Panel
The 920i front panel, shown in Figure 1-2, consists of a 27-button keypad with a large backlit LCD display. The
keys are grouped as five configurable softkeys, five primary scale function keys, four navigation keys, and numeric
entry keys.
Weight information is displayed with a graphical scale in six font sizes up to 1.2 inches. Up to four scale widgets
can be displayed in legal-for-trade, multiple-scale applications. Status areas on the display are used for operator
prompts and entering data. The remainder of the display can be graphically configured for representation of a
specific application. Display contrast can be adjusted with the LCD contrast potentiometer.
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Figure 1-2.
920i
Front Panel
1.3.2 Enclosures
The 920i is housed in a stainless steel enclosure that is rated for NEMA 4X/IP66.