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2.6 Error Codes

2 – 25

2.6

Error Codes

The SR470 contains an error bu

ﬀ

er that stores up to 20 error codes

associated with errors encountered during power-on self tests, com-
mand parsing, or command execution. The ERR LED will be high-
lighted when a remote command fails for any reason. The errors in
the bu

ﬀ

er may be read one by one by executing successive

LERR?

commands. The meaning of each of the error codes is described
below.

2.6.1

Execution Errors

Error Code

Meaning

0

No Error

No more errors left in the queue.

10

Illegal Value

A parameter was out of range.

11

Illegal Mode

The action is illegal in the current mode. This
might happen, for instance, if alignment mode
is enabled when a shutter is under external level
control.

12

No Shutter Response

A query was made to a shutter but it didnt re-
spond.

13

Bad Shutter Response

A query was made to a shutter but the response
was not in the expected format.

15

Not Allowed

The requested action is not allowed because the
instrument is locked by another interface.

SR470 Shutter Controller

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Содержание SR470

Страница 1: ...esearch Systems Revision 1 0 April 7 2009 Distribution in the UK Ireland Lambda Photometrics Limited Lambda House Batford Mill Harpenden Herts AL5 5BZ United Kingdom E info lambdaphoto co uk W www lam...

Страница 2: ...st be returned to a Stanford Research Systems authorized service facility Contact Stanford Research Systems or an authorized representative before returning this product for repair Information in this...

Страница 3: ...ser Safety v Symbols vi Notation vii Speci cations viii 1 Getting Started 1 1 1 1 Introduction to the Instrument 1 2 1 2 Front Panel Operation 1 2 1 3 The SR470 Rear Panel 1 19 2 Remote Operation 2 1...

Страница 4: ...ii Contents SR470 Shutter Controller...

Страница 5: ...des include manual control from the front panel control by an external TTL signal and control by internal timing including triggerable bursts Remote operation is supported with GPIB RS 232 and Etherne...

Страница 6: ...ted to the outlet ground to protect against electrical shock Always use an outlet which has a properly connected protective ground The shields of the six rear panel BNC ports the rear panel Chassis Gr...

Страница 7: ...product Laser Safety Certain hazards are always present when working with laser radia tion Visible and invisible beams of light have the potential to cause serious bodily injury including blindness or...

Страница 8: ...Find on SRS Products Symbol Description Alternating current Caution risk of electric shock Frame or chassis terminal Caution refer to accompanying documents Earth ground terminal Battery Fuse On supp...

Страница 9: ...g conventions used in this manual are Front panel buttons are set as Button Front panel indicators are set as Remote Remote command names are set as IDN Literal text other than command names is set as...

Страница 10: ...999 seconds Bursts Timing sequence may be repeated after a trigger from 1 to 99 999 999 times or continuously Sync Output The rear panel Sync Out TTL signal mirrors whether the shutter is presently co...

Страница 11: ...I O ports Control input TTL compatible rear panel input BNC connector internally pulled up to 3 3 VDC through 100 k Auxiliary I O Two rear panel BNC connectors TTL level multi purpose Alarm output On...

Страница 12: ...x General Information SR470 Shutter Controller...

Страница 13: ...eration 1 4 1 2 3 Operating modes 1 7 1 2 4 Timing and sequences 1 8 1 2 5 Utility functions 1 12 1 2 6 Remote interface con guration 1 14 1 2 7 Remote lockout and front panel operation 1 18 1 2 8 Res...

Страница 14: ...te of a connected shutter At power on the SR470 will return to its previous con guration after a brief system check and initialization 1 2 Front Panel Operation The front panel of the SR470 Figure 1 1...

Страница 15: ...reased or decreased with the arrow keys Pressing the up arrow key will increase the value by the current step size while pressing while the down arrow key will decrease the value by the current step s...

Страница 16: ...ontrol 1 2 2 1 Keys and normal operation When the SR470 has an attached shutter head that is powered on and functioning properly the four keys in the Master section have the following functions The tr...

Страница 17: ...either the OPEN or CLOSED will be lit showing the position of the shutter blade Note It is possible to disable the front panel LEDs see 1 2 5 6 The FAULT indicator on the SR470 may be lit either if th...

Страница 18: ...the front panel FAULT indicator is lit The audible alarm is a continuously emitted loud siren like noise It can be enabled or muted by pressing the Alarm in the Utility section of the front panel see...

Страница 19: ...n Direct state control of the shutter is also allowed in this mode the state can be changed by pressing the OPEN or CLOSE keys Please see 1 2 4 for more about timed sequences 1 2 3 2 External triggere...

Страница 20: ...rom one of the remote interfaces The front panel TRIGGER indicator located next to the key remains illuminated for the duration that any timed sequence is in progress 1 2 4 1 Timing diagram The timing...

Страница 21: ...eceived The actual opening closing time of a shutter is hardware and possibly mode dependent please consult the user manual for your shutter head 1 2 4 2 Entering timing parameters Timing parameters o...

Страница 22: ...pening closing time can be queried over the remote interface please see 2 5 5 There are two possible frameworks delay priority and frequency pri ority for entering timing parameters which depend upon...

Страница 23: ...continuous mode The timing diagram discussed in 1 2 4 1 represents a single exposure cycle with an exposure bracketed by a predelay and postdelay A burst consists of a set of single exposure cycles th...

Страница 24: ...in 1 2 2 4 and 1 2 2 5 the audible alarm is active whenever the front panel FAULT indicator is lit unless the alarm is muted The fault condition causing the alarm can usually be cleared by pressing th...

Страница 25: ...ossible modes are numbered 0 through 3 and their function is hardware dependent please see the shutter head operation manual for details To con gure the shutter to operate in an alternate mode press S...

Страница 26: ...l messages The ERROR enunciator will remain lit while there are still unviewed error messages The list of SR470 error codes is in 2 6 1 2 6 Remote interface con guration The remote interfaces of the S...

Страница 27: ...been reset Baud rate Two RS 232 baud rate choices are available on the SR470 Press the and keys to switch between and which indicate respectively that the RS 232 interface is at baud rate 9 600 baud o...

Страница 28: ...is reset 1 2 6 3 Ethernet The SR470 comes standard with an RJ 45 network communications port located on the rear panel The port may be used to communicate with the SR470 over a 10 100 Base T ethernet...

Страница 29: ...m is selected the numeric display of the SR470 will show indicating that the router address is displayed on that line The IPAddr enunciator to the left of the numeric display is also lit while display...

Страница 30: ...ont panel operation from Remote mode press the Local key this is the same key as Enter The SR470 can also be placed into complete lockout mode by using the LOCK query over a remote interface In this m...

Страница 31: ...ecalled 1 RS 232 Enabled 2 RS 232 baud rate 9600 3 GPIB Enabled 4 GPIB address 8 5 TCP IP interface Enabled 6 IP Address 0 0 0 0 7 Subnet 0 0 0 0 8 Router 0 0 0 0 9 Link speed 100 Base T 10 VXI 11 Tel...

Страница 32: ...is the rear panel BNC input labeled Control Input This connector accepts an ex ternally generated logic level input signals It is internally pulled up to 3 3 VDC through 100 k and is compatible with...

Страница 33: ...onsid erations for more information 1 3 5 Aux I O ports The two rear panel Auxiliary I O BNC connector labeled Aux I O 1 and Aux I O 2 are multifunction I O ports that can be con gured over any remote...

Страница 34: ...nd 1 3 8 Remote interfaces Remote operation of the SR470 is supported with GPIB RS 232 and Ethernet computer interfaces All con guration options are settable from the front panel 1 2 6 or over the rem...

Страница 35: ...nal shutter head Inside the shutter head there is an electrical connection between its chassis case and the shield of the cable If the chassis of the shutter head is electrically connected to earth gr...

Страница 36: ...from the rear The ground connection for the cable shield is in the form of a three pin header which is located adjacent to the shutter output connector A two pin jumper on the header selects whether t...

Страница 37: ...mand List 2 10 2 5 1 Common IEEE 488 2 Commands 2 10 2 5 2 Status Reporting Commands 2 13 2 5 3 Instrument Control Commands 2 15 2 5 4 Exposure Cycle Control Commands 2 19 2 5 5 Shutter Speci c Comman...

Страница 38: ...s Clear RCL i 2 11 Recall Instrument Settings RST 2 12 Reset the Instrument SAV i 2 12 Recall Instrument Settings SRE i 2 12 Service Request Enable STB 2 12 Status Byte TRG 2 13 Trigger WAI 2 13 Wait...

Страница 39: ...Delay SSFR f 2 20 Step Size Frequency COUN i 2 20 Burst Count FREQ f 2 20 Frequency TPRE t 2 20 Predelay Time TEXP t 2 20 Exposure Time TPST t 2 20 Postdelay Time TOTL t 2 20 Total Delay Time Shutter...

Страница 40: ...2 4 Remote Operation REMT 2 24 Go to Remote XTRM i j k 2 24 Set Interface Terminator SR470 Shutter Controller...

Страница 41: ...2 12 Status Byte TRG 2 13 Trigger WAI 2 13 Wait for Command Execution A ABRT 2 15 Abort Trigger in Progress ASRT i 2 15 Assertion State AUXC 1 i 2 16 Auxiliary I O BNC 1 Con guration AUXC 2 i 2 16 Aux...

Страница 42: ...21 Shutter Error Word SHOW i 2 18 Show Main Display SPCN i 2 19 Step Burst Count SPEX i 2 19 Step Exposure SPFR i 2 19 Step Frequency SPOS 2 21 Shutter Position SPPR i 2 19 Step Predelay SPPS i 2 19 S...

Страница 43: ...Shutter Temperature TEXP t 2 20 Exposure Time TOTL t 2 20 Total Delay Time TPRE t 2 20 Predelay Time TPST t 2 20 Postdelay Time TRGS 2 15 Trigger Status U UNLK 2 24 Release Lock X XTRM i j k 2 24 Set...

Страница 44: ...88 2 de ned commands begin with the character followed by 3 letters SR470 speci c commands are composed of 4 letters The four letter mnemonic shown in CAPS in each command se quence speci es the comma...

Страница 45: ...g at bit 5 CME of the event status register ESR Execution errors can be detected by looking at bit 4 EXE of the event status register In both cases an error code indicating the speci c cause of the er...

Страница 46: ...he corresponding bit is set in the ESR register Standard Event Status Register ESR Query the Standard Event Status Register Upon executing a ESR query the returned bits of the ESR register are cleared...

Страница 47: ...ag is 0 then the Service Request Enable and Standard Event Status Enable Registers SRE ESE are stored in non volatile memory and retain their values through power cycle events If the value of the ag...

Страница 48: ...truments settings to location 3 Service Request Enable SRE i Set query the Service Request Enable register to i Bits set in this register cause the SR470 to generate a service request when the corresp...

Страница 49: ...before continuing 2 5 2 Status Reporting Commands Counts Remaining CNTR Query the counts remaining in the burst of cycles If no trigger is in progress or the last cycle is in progress the command wil...

Страница 50: ...Query the current fault status of the shutter This command may return the following fault responses Code Meaning 0 No fault 1 Disconnect fault 2 Fault reported by shutter 3 12 V power fault If the sh...

Страница 51: ...ny trigger received subsequent to this command will trigger a new cycle Assertion State ASRT i Set query the assertion state of the shutter to i The set version forces the shutter to the given state b...

Страница 52: ...i controls the con guration according to the following table i Con guration 0 Manual Con guration State controlled by AUXI command 1 Reset Shutter aborts any trigger in progress on the falling edge of...

Страница 53: ...Set query the enable state of the shutter c to i If parameter i is 0 the shutter is in sleep mode If it is 1 then shutter is powered on The query form will return 2 if a fault has been detected for th...

Страница 54: ...L See 1 2 3 for details about these modes SRCE 2 CR Example Place shutter under external level control Open Closed State STAT i Set query the open closed state of the shutter to i The set ver sion for...

Страница 55: ...Tpost by the current step size in the direction given by i If i is 1 step up if i is 0 step down Step Total Delay SPTL i Step the total sequence length Ttotal by the current step size in the direction...

Страница 56: ...ested frequency Predelay Time TPRE t Set query the predelay to t in seconds Exposure Time TEXP t Set query the exposure to t in seconds Postdelay Time TPST t Set query the postdelay to t in seconds To...

Страница 57: ...ptionally by hex bytes b to the shutter Send back the shutter response if the query form is used SCMD T CR Example 35 Send the ASCII byte T to shutter 1 and return the response This returns the shutte...

Страница 58: ...ion of link speed 1 Set link speed to 10 Base T or 100 Base T When auto negotiation is enabled the manual link speed selection is ignored When auto negotiation is disabled the manual speed selection i...

Страница 59: ...Mask 10 Set Query Default Gateway Set j to 0 to disable a setting and 1 to enable it Parameters 8 10 require an IP address in the form a b c d where each letter is a decimal integer in the range 0 25...

Страница 60: ...ify that the instrument is not presently locked from any other interface acquire the lock with LOCK before executing the UNLK query Go to Remote REMT Enable remote control of the instrument In this mo...

Страница 61: ...bed below 2 6 1 Execution Errors Error Code Meaning 0 No Error No more errors left in the queue 10 Illegal Value A parameter was out of range 11 Illegal Mode The action is illegal in the current mode...

Страница 62: ...The SR470 discards any pending output 2 6 3 Device Dependent Errors Error Code Meaning 40 Failed ROM Check The ROM checksum failed The rmware code is likely corrupted 2 6 4 Parsing Errors Error Code...

Страница 63: ...u er for storing parameter values over owed This probably indicates a syntax error 118 Invalid Floating Point Number The parser expected a oating point number but was unable to parse it 120 Invalid In...

Страница 64: ...ce over owed All data in both the input and output bu ers will be ushed 2 6 6 Other Errors Error Code Meaning 254 Too many errors The error bu er is full Subsequent errors have been dropped SR470 Shut...

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