NCR 7870 manual IBM Tone Control Good Read Tone, Ocia Price Display, IBM Rexmit Control

7-56 Chapter 7: Programming

scanned or a weight change is registered by the scale. Use the Hex 2 tag to enable the timer.

When the 5-Second Weight Timer is disabled, the display will show a weight value until the host terminal sends price information. The price will remain on the display until new weight or price information is sent to the display. Use the Hex 1 tag to disable the timer.

IBM Tone Control (Good Read Tone)

When you use an IBM terminal, this parameter determines what device controls the tone. Scanning the Hex 4 tag enables this option and the IBM terminal controls the tone. Scanning the Hex 3 tag disables this option and the scale controls the tone.

OCIA Price Display

When you use an OCIA terminal, this parameter controls the price display. If you select enable by scanning the Hex 6 tag, the scale accepts and displays price information from the terminal. If you select disable by scanning the Hex 5 tag, the scale does not accept or display any price information.

IBM Rexmit Control

When you use an IBM terminal and the scale detects a bad message from the terminal, this parameter controls how the original message gets retransmitted. If you select enable by scanning the Hex 7 tag, the scale retransmits the original message three times, and then terminates the sequence. If you select forever by scanning the Hex 8 tag, the scale retransmits the original message until it is accepted, or until the scale is told to reset by the terminal. You should not use the enable selection unless advised to do so by NCR to solve a problem.

OCIA Blank Display In Price Mode

When Price Display mode is enabled, the OCIA Blank Display in Price Mode parameter controls how the scale reacts to blank screen commands. If you select enable by scanning the Hex A tag, the scale blanks the screen when it receives the command. If you select disable by scanning the Hex 9 tag, the scale ignores the command.