Omron NT20S Operation Manual page 18

Safety Precautions
To ensure system safety, be sure to periodically read the PT operating status bit
from the host in order to ensure that the PT is always operating normally.
S Always turn off the power at the PC and PT before connecting the C200H inter-
face cable. Otherwise the system may operate unpredictably.
If the actual character string is longer than the specified character string length,
the specified number of characters is written and the remainder are discarded.
A timeout error message is displayed if the actual character string is shorter than
the specified character string length.
This command cannot be used to write negative numbers. Use the 8-digit Write
Command (refer to 6-3 8-digit Write Numeral Memory Table).
The display attributes set with the Support Tool determine if lamps #0 to #31 light
continuously or flash. The display status set with this command is ignored.
This command cannot be used for negative numbers. Always set "8" as the num-
ber of transferred digits when negative numbers may be input.
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