12-38 BE1-951 Installation 9328900990 Rev L
ASCII Command Communication
ASCII communication byte-framing parameters are fixed at 8 data bits, no parity, and 1 stop bit.
Additional ASCII communication protocol parameters are settable. Baud rate and address are settable
from the ASCII command interface using the SG-COM command. These parameters can also be set at
HMI Screen 6.1.X. Several additional settings are available to further customize ASCII communications.
These settings are described Section 9, Security. Additional parameters for page length, reply
acknowledge and software handshaking can be changed only through the ASCII command interface
using the SG-COM command.
IRIG Input and Connections
The IRIG input is fully isolated and supports IRIG Standard 200-98, Format B002. The demodulated (dc
level-shifted) input signal must be 3.5 volts or higher to be recognized as a high logic level. The maximum
acceptable input voltage range is +10 volts or -10 volts (a 20 volt range). Input burden is nonlinear and
rated at approximately 4 kilo-ohms at 3.5 Vdc and approximately 3 kilo-ohms at 20 Vdc.
IRIG connections are located on a terminal block shared with the RS-485 and input power terminals.
Terminal designations and functions are shown in
Table 12-4.
Table 12-4. IRIG Terminal Assignments
Terminal Function
A1 (+) Signal
A2 (-) Reference
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