Service manual

Simrad EA 500 / EK 500
P2265E/F 5
1 INTRODUCTION
The 500-series echo sounders may issue alarms, errors, warnings and other
messages to the display and external devices (via serial port or Ethernet).
Note that the # sign indicates the number of the transceiver unit affected
(1/2/3). No number is issued for echo sounders with only one transceiver.
Note that the lists include messages for all the echo sounders in the 500
series.
2 GENERAL MESSAGES
All messages starting with "SP-#" concern signal processor no. # (described in
chapter 3).
Message Explanation
Bottom lost alarm # Bottom tracking lost for transceiver-#
Display not ready Display overload (may occur if system unable to update display
with the current ping rate)
External trigger error Expected trigger pulse not received
Illegal remote parameter Parameter value of received remote command out of range or
not recognized
Internal error # *
Internal error 7 Spurious interrupt (caused by badly formed trigger pulses etc.)
LAN interrupt level fault *
LAN invalid ind. address The EA 500 local Ethernet address must be an individual
address, i.e. least significant bit of first byte of address must be
zero
LAN invalid multic. adr. Invalid EA 500 multicast address
LAN multicast table full *
LAN no command blocks May appear while CPU is heavily loaded. Regular appearance
of this message indicates a LAN interface terminator or
hardware problem
LAN no transmit blocks See above
LAN receive overload Too much data received from LAN (Local Area Network), data
is lost
LAN socket table full *
LAN too high priority *
LAN too long message *