User`s manual

PK2100
E-2 s Appendix E: EEPROM
PK2100/PK2120 24-V Version Calibration
Table E-1 presents the calibration constants for the PK2100/PK2120, the
standard 24-volt versions.
Table E-1. Calibration Constants for PK2100/PK2120 EEPROM
Address Definition
0
Startup Mode. If 1, enter program mode. If 8, execute
loaded program at startup.
1 Baud rate in units of 1200 baud.
0x100 Unit “serial number.” BCD time and date with the fol-
lowing format: second, minutes, hours, day, month, year.
0x106 Required power voltage. This value is 24 for standard
PK2100s and 12 for the 12-V version.
0x107 Software test version (times 10) (= 12 for version 1.2).
0x108 Microprocessor clock speed in units of 1200 Hz (16 bits)
(= 5120 for 6.144-MHz clock speed).
0x10C Bus address for networking. 16 bits.
0x10E Analog voltage reference units of 1 mV. 16-bits. (= 10300
for 10.300 V).
0x110 Excitation resistor values for universal inputs 1–6. These
are the pull-up resistors to the reference. Six integers in
units of 0.5 Ω (= 6600 for 3.3-kΩ resistors).
0x11C Pull-down resistor values for universal inputs 1–6. Six
integers in units of 0.5 Ω. Default is 9400 (4.7 kΩ).
0x128 4–20 mA load resistor. Resistance in units of 0.5 Ω. The
nominal value is 780 (2 counts/Ω × 390 Ω). This
represents the combined resistance of the load resistor and
the pull-down resistor in parallel.
0x12A Reserved
0x130 Table of 11 values relating to internal DAC. First value is
output voltage when nominal output is zero. Additional
values are output voltage increment (above offset) when
input number is 1, 2, 4... 256, 512. Stored as integers
expressed in units of 0.5 mV.
0x146 Table of 11 values relating to external DAC. First value is
output voltage when nominal output is zero. Additional
values are output voltage increment (above offset) when
input number is 1, 2, 4... 256, 512. Stored as integers
expressed in units of 0.5 mV.
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