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Analog Outputs Section 7-10
F: Analog output value
Specifies the target analog output value as a 4-digit hexadecimal value.
Note The specified analog output value must be within the allowed range listed
above. If an out-of-range output value is specified, an error will occur and it
will be necessary to switch to PROGRAM mode in order to output the analog
output again.
ACC(888) can be used to generate a rising or falling analog output value
T = Rate of Change (4-digit hexadecimal)
T contains the rate of change (slope) per 2 ms.
T+1 = Analog Output Target Value
T+1 is set to the target analog output value as a 4-digit hexadecimal value.
Note ACC(888) and SPED(885) cannot be used to change the analog output value
while ACC(888) is generating a sloped output. Change the output value only
after the target value has been reached.
7-10-5 Procedure
1,2,3... 1. Determine the analog output range, number of outputs, refreshing method,
and instructions that will be used.
2. Wire the analog output.
3. Make the necessary System Setup settings (output method).
• Set the analog output range (
−10 to +10 V, 0 to 10 V, 0 to 5 V, or 1 to 5 V).
• Set the output stop function (clear, peak value, or hold).
• Set the analog output refreshing method (END refresh or immediate
refresh).
4. Create the necessary ladder programming.
• Set the output value in A560 or A561 with an instruction such as MOV.
• Execute SPED(885) or ACC(888).
– 10 to 10 V EA84 to 157C hex (–5,500 to 5,500 decimal, resolution:
11,000)
0 to 10 V, 0 to 5 V,
1to 5 V
FF38 to 1068 hex (–200 to 4,200 decimal, resolution: 4,400)
–10 to 10 V 0000 to 2AF8 hex (0 to 11,000 decimal)
0 to 10 V, 0 to 5 V or 1 to 5 V 0000 to 1130 hex (0 to 4,400 decimal)
–10 to 10 V EA84 to 157C hex
(–5,500 to 5,500 decimal, resolution: 11,000)
0 to 10 V, 0 to 5 V or 1 to 5 V FF38 to 1068 hex
(–200 to 4,200 decimal, resolution: 4,400)
P: Port specifier
(#0001 for analog output 1 or #0002 for analog output 2)
T = Rate of change, T+1 = Analog output target value
M: Always #0000
(@) ACC
P
#0000
T