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SS6000 Networking Guide
3.2
Network Alarms
Network alarms indicate unusual network activity (e.g. incompatible client programming, rogue client,
etc.). Warnings W17 or W18 can occur while the ‘Local’ input is asserted (i.e. force local).
Network Alarm
Comments
W06 NET CTRL T/O
Warns of pending control data loss timeout (when ‘Net Control’ enabled).
T06 NET CTRL T/O
Network controlled motor tripped due to control data loss timeout.
W16 NET REQ BAD
Invalid request. See exception code (XC) on “C3:ReqsBad”diagnostic screen.
W17 NET CTRL BLK
Control request blocked (i.e. by ‘Net Control’ par or ‘Local’ input).
W18 NET CONF BLK
Configuration request blocked (i.e. by ‘Net Config’ par or ‘Local’ input).
W19 NET CONF ERR
Configuration data discarded as value was out of bounds (range error).
T19 NET CONF ERR
Motor start attempted after ‘NET CONF ERR’ warning. Check client program.
T39 NET TRIP SIG
Network client tripped operating motor via the ‘Trip’ control command flag.
3.3
Network Diagnostic Menu
The network diagnostic menu provides comprehensive network diagnostic information including the
diagnostic counters as defined in the Modbus specification [4]. Press the [RESET] key to clear the
counters. Use this menu to diagnose network communication and/or measure transaction rate.
Network Diagnostic
Screen
Description
Net Status Ctrl*
Diag Flags 003Ah
Network status text and event wheel as per “Network Status Summary”.
Network Diagnostic Flags (in hex) as per Smartstart® Modbus map [2].
C0:ReqsAok 12345
C1:BusMsgs 12345
Count of requests processed normally. Note 2.
Count of error-free bus messages. Note 4.
C2:BusErrs 12345
FE PE OR LEN CRC
Count of bus messages with a data link communication error. Note 4.
Shows “No comms errors” or lists the type of errors detected. Note 5.
C3:ReqsBad 12345
A001 FC016 XC002
Count of invalid (bad) requests received (processing exception occurred).
Shows “No exceptions” or the last exception (bad request). Note 6.
C4:ReqsRxd 12345
A001 FC023 okay
Count of requests received (with or without exceptions).
Shows “No requests” or the last function code. Note 6 and 7.
C5:ReqCast 12345
C6:RspNaks 12345
Count of broadcast requests received.
Count of exception responses sent.
C7:RspBusy 12345
C8:OvrRuns 12345
Count of busy responses sent (always zero for Smartstart® 6000).
Count of messages detected with a character overrun error.
Notes:
1.
Press [RESET] to clear all diagnostic registers and counters (only when in this menu).
2.
C0 is the event counter described in [3] for FC 11 “Get Comm Event Counter”.
3.
C1 to C8 correspond to the serial line diagnostic counter numbering as defined in [4].
4.
Regarding C1 & C2, the Smartstart® does not error check messages to/from other devices.
5.
Errors shown: framing, parity, overrun, length and CRC (FE, PE, OR, LEN & CRC).
6.
Shows device address (A) & function code (FC). If applicable exception code (XC) is shown. A000
indicates a broadcast request. Meanings of exception codes (XC) are listed in [3].
7.
For Modbus/TCP, the address (A) is the “Unit Identifier” from the Modbus/TCP header.
