Granville-Phillips Micro-Ion 354 E Series, Instruction Manual, Page: 26 / 54

Chapter 5
26
Micro-Ion E Module Instruction Manual 354011, Rev. A
5.4 Error Responses
If a command cannot be processed, the module returns one of the error
responses listed in Table 5-1.
Table 5-1 RS–232 Error Responses
Message from
Module
Possible Causes Solution
COMM ER Parity error in command from host. • Verify that parity from host matches parity
configuration for module.
• Non-programmable parity for module is no parity,
one stop bit (see page 44).
RANGE ER SB command contains an invalid baud rate. • Re-send SB command containing valid baud rate.
• Valid baud rates are 1200, 2400, 4800, 9600, or
19200 (see page 28).
NVRAM ER Module cannot write data to non-volatile
memory (NOVRAM). • Send FAC command to reset communication values
to factory defaults (see page 30).
• Re-send set, unlock, or toggle command.
• Return module to factory (see page 40).
SYNTX ER • Command was improperly entered.
• Module does not recognize command.
• UNL command was sent when software
functions were already unlocked.
Re-enter command using proper syntax (see page 27).
9.99E+09 • Module cannot indicate a valid pressure.
• Micro-Ion E gauge is OFF. • Send RS command to determine module status (see
page 33).
• If necessary, replace gauge assembly (see page 40).
• If Micro-Ion E gauge is OFF, send IG1 command (see
page 30).
LOCKED Interface function is locked. Send UNL or TLU command to unlock interface
functions (see page 27).
INVALID • Micro-Ion E gauge is defective.
• IG1 command has been sent. • If Micro-Ion E gauge is defective, replace gauge
assembly (see page 40).
• If IG1 command has been sent, send IG0 command
(see page 30).