SETUP and INTERROGATION Commands  [Back ]

AFL
(ANALOG FILTER)

Sets or reads the filter cutoff frequencies for the 5D module's A and B Analog Outputs

EXC
(EXCITATION—
Model 5D70(V) only)

Sets or reads the module's DC excitation voltage

EXF
(EXCITATION FREQUENCY—
Model 5D30(V) and Model 5D78(V) only)

Sets or reads the module's AC excitation frequency

FAZ
(PHASE—
Model 5D30(V) and Model 5D78(V) only)

Sets or reads module's phase adjustment value (not to exceed 39 degrees)

LNN
(LINEARITY NEGATIVE)

Sets or reads the module's negative linearity adjustment (a percentage of actual midscale output reading, not to exceed 2%); a positive LNN value moves the negative-domain midpoint upwards (yielding a smaller negative reading at that point), while a negative LNN value moves it downwards (yielding a larger negative reading).  Does not currently apply to the Model 5D70 or 5D70V.

LNP
(LINEARITY POSITIVE)

Sets or reads the module's positive linearity adjustment (a percentage of actual midscale output reading, not to exceed 2%); a positive LNP value moves the positive-domain midpoint upwards (yielding a larger positive reading at that point), while a negative LNP value moves it downwards (yielding a smaller positive reading).  Does not currently apply to the Model 5D70 or 5D70V.

MID
(MODULE IDENTIFICATION)

Reads the module's current ID and diagnostic information string; returns 5Dnn,xxxx,hhhh (where "5Dnn" is the Model Number, "xxxx" is the 4-character alphanumeric Serial Number, and "hhhh" is the 4-character hexadecimal-ASCII Diagnostic Code).  There is no "write" form of the MID command.  See also the OPN and QID commands, below.

NOTE: When the MID command is issued within 5 seconds of powerup to a module with the "ENABLE" line at the Logic 1 state, a MID response will be returned even though that module has not been specifically "opened" by means of the OPEN (OPN) command.  This feature is used in the initialization routine of certain Daytronic "5DMB" Motherboard Backplane units, where the installed modules are sequentially enabled in order to determine their respective connector "locations" (as well as their respective model and serial numbers).

MIO
(MODULE INPUT OFFSET)

Sets or reads the pre-amplified (analog input) offset (a percentage of the selected full-scale input range, not to exceed 20%—see the RNG command); used in the calibration of some 5D modules

MOO
(MODULE OUTPUT OFFSET)

Sets or reads the post-amplified (analog output) offset (a percentage of full-scale output, not to exceed 20%); used in the calibration of some 5D modules

MP1 through MPD
(MODULE PARAMETER)

Used by the 5D Configurator software to write and read miscellaneous module configuration information (including tag name; description; transducer model/serial number; engineering units; all required calibration data; date/time of last calibration; and date/time of last module download) 

MSF
(MODULE SCALE FACTOR)

Sets or reads the module gain (scale factor); used as a multiplier for the selected full-scale input range in the calibration of all 5D modules—see the RNG command

RNG
(RANGE)

Sets or reads the module's full-scale input range (a module-specific setting encoded by a single alphanumeric character from 0 through the letter O)

SEN
(SENSITIVITY)—
Model 5D40 only)

Sets or reads the module's input (trigger-level) sensitivity range, in volts

SYM
(NEGATIVE SYMMETRY)

Sets or reads the module's negative symmetry adjustment (a percentage of full scale, not to exceed 2%); a negative SYM value yields a more negative reading in the negative domain, while a positive SYM value yields a more positive reading in the negative domain.  This command applies only to certain 5D modules.

IMPERATIVE Commands  [Back ]

OPN
(OPEN)

A command of OPN=xxxx opens single-point communications between the computer or other device issuing the command and the single 5D module bearing the Serial Number "xxxx" (see also the MID command, above).  The addressed module (only) will respond to a valid OPN command with "ACK" (i.e., "acknowledge").

QID
(QUERY MODULE ID)

Reiteration of this command allows the creation of a list of the Serial Numbers of all modules in a connected array.  Upon each issuance of QID, one and only one module in the array will respond with its 4-character alphanumeric serial number (see the MID command, above), after which that module is placed in a "mute" mode, so that it will not respond to subsequent QID interrogations.  After all modules in the array have delivered their respective serial numbers and have been "muted," the issuance of QID will yield no response, which signals that the interrogation session is complete.  Each module may then be specifically "opened" (via the OPN command) and queried for complete ID information (via the MID command).

RSM
(RESUME—
Model 5D70(V) and Model 5D78(V) only)

Resumes normal measurement mode by opening the calibration shunt (see the SHN, SHP, and SHS commands, below)

SHN
(SHUNT NEGATIVE—
Model 5D70(V) and Model 5D78(V) only)

Closes the calibration shunt for a negative upscale reading; the shunt is opened by a subsequent RESUME (RSM) command

SHP
(SHUNT POSITIVE—
Model 5D70(V) and Model 5D78(V) only)

Closes the calibration shunt for a positive upscale reading; the shunt is opened by a subsequent RESUME (RSM) command

SHS
(SHUNT STATUS—
Model 5D70(V) and Model 5D78(V) only)

Queries the current status of the calibration shunt; returns "P" (if the shunt is closed for positive calibration), "N" (if the shunt is closed for negative calibration), or "O" (if the shunt is open—i.e., shunt calibration of either polarity is OFF, as will be the case on module powerup and following a RESUME (RSM) command

NOTE: If the response to an SHS command is a lower-case "p," "n," or "o," it means that the shunt state was last set by means of a logic-signal command to the 5D module.  If the response is an upper-case "P," "N," or "O," it means that the specified shunt state was last set by means of an SHP, SHN, or RSM command issued to the 5D module by the Configurator software or some other command source.