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The diagMasMaxScanTime register, registers 4112 and 4113, contains the
maximum value that diagMasScanTime has reached since it was last cleared.
9.9.3 DP Slave Statistics
These counters relate to the operation of the card as a DP slave.
The card increments the diagSlaveUpdate counter when it receives an I/O
data update from the master.
The card increments the errSlvErr counter when there are errors while the
master is parameterizing the slave.
The card increments the errSlvTout counter when the slave hasn’t received a
message from the master within the master timeout period.
9.9.4 ASPC2 PROFIBUS Controller Statistics
The ASPC2 LAN controller maintains the following counters. They are all 1
byte long. When these counters reach 255, they hold at 255 until cleared.
The errInvReqLen counter, the low byte of register 4124, counts invalid
request length errors. These errors occur when the scanner software gives the
LAN controller a message that is too long. This error is an internal error and
should never occur.
The errFifo counter, the high byte of register 4124, counts FIFO overflow
errors. These errors occur when the LAN controller couldn’t write to memory
fast enough. This error is an internal error and should never occur.
The errRxOverun counter, the low byte of register 4125, counts receive
overrun errors. This error is an internal error and should never occur.
The errDblTok counter, the high byte of register 4125, counts double token
errors. These errors may occur when more than one node thinks it has the
token or they may occur due to wiring errors, duplicate nodes, etc. The
scanner withdraws to the “not hold token” state (decides it doesn’t have the
token) and waits until it gets the token passed to it again.
The errRespErr counter, the low byte of register 4126, counts response errors,
when a message failed or there was no response from destination. This error
may be due to bad hardware or faulty wiring.
The errSyniErr counter, the high byte of register 4126, indicates general
network errors. These errors occur when there are problems on the network
but before you get a network timeout error.
Summary of Contents for SST-PFB-SLC
Page 7: ...Contents vii Technical Data 105 Index 107 A...
Page 8: ...SST PFB SLC User s Guide viii...
Page 14: ...SST PFB SLC User s Guide 6...
Page 20: ...SST PFB SLC User s Guide 12...
Page 34: ...SST PFB SLC User s Guide 26...
Page 53: ...45 6 DP Master Application Examples...
Page 56: ...SST PFB SLC User s Guide 48 Sample Program...
Page 57: ...DP Master Application Examples 49 Sample continued...
Page 66: ...Using the Scanner Module as a DP Slave 58...
Page 67: ...59 8 Using FDL...
Page 75: ...Using FDL 67 Sample Program...
Page 76: ...SST PFB SLC User s Guide 68 Sample Continued...
Page 80: ...SST PFB SLC User s Guide 72 Sample Program...
Page 81: ...SST PFB SLC User s Guide 73 Sample Continued...
Page 85: ...SST PFB SLC User s Guide 77...
Page 86: ...SST PFB SLC User s Guide 78...
Page 87: ...79 9 Diagnostics This chapter describes system diagnostics...
Page 105: ...97 11 Network Parameter Defaults This chapter describes network defaults...
