Honeywell VRX180 Manual De Usuario

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Programming Function Blocks and Features  
 
Video Recorder – User Manual 
 
121
BCD 
Converts up to 8 discrete inputs’ binary coded decimal into an unsigned integer and output the integer 
as CVn OV.  For example, 00000100 = 4. 
On the instrument, when the enable is triggered, the set point program specified by the value of CVn OV 
is copied from internal storage to the Profile function block(s) where the profile(s) can be programmed 
or executed. 
Table 4-31 describes the BCD prompts. See Table 4-2 for additional prompts. 
Table 4-31   BCD Prompts 
 
 
Prompt 
Range/Selections 
Definition 
OUT LOW LIMIT 
OUT HIGH LIMIT 
OFF or number 
Displayed output value will be clamped and will flash when 
these limits are exceeded. 
BIT 0 
through 
BIT 7 
OFF, discrete parameter, 0, 
The binary coded decimal represented by the states of these 
discretes will be converted into an unsigned integer.  BIT 7 is 
the most significant bit and BIT 0 is the least significant bit. 
ENABLE 
OFF, discrete parameter, 0, 
On the instrument, when this discrete transitions from off(0) 
to on(1), the specified program’s profile(s) will be loaded from 
internal memory to the Profile function block(s).  See Table 
4-32. 
 
Example #1, loading a 2-profile program 
You are programming a 2-programmer instrument.  According to Table 4-32, a 2-programmer 
instrument can run 2 profiles at a time and can store in its internal memory up to 6 programs, each 
containing 2 profiles.   
Suppose the BCD bits are programmed as follows: Bit 2 = 1, Bit 1 = 1, Bit 0 = 0.  This sequence of bits 
equals the number 6 and is the value of CVn OV.  When the Enable discrete is triggered ON(1), the 
profiles in Program #6 will be loaded from internal memory into the function blocks for Profile #1 and 
Profile #2, where they can be edited or run. 
Example #2, loading a 4-profile program 
You are programming a 4-programmer instrument.  According to Table 4-32, a 4-programmer 
instrument can run 4 profiles at a time and can store in its internal memory up to 3 programs, each 
containing 4 profiles. 
Suppose the BCD bits are programmed as follows: Bit 2 = 0, Bit 1 = 1, Bit 0 = 0.  This sequence of bits 
equals the number 2 and is the value of CVn OV.  When the Enable discrete is triggered ON(1), the 
profiles in Program #2 will be loaded from internal memory into the function blocks for Profiles #1 
through #4, where they can be edited or run.