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Omron CPM1 Programming Manual

Omron CPM1
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271
Conversion Instructions Section 5-19
Some examples of Di values and the 8-bit ASCII to 4-bit hexadecimal conver-
sions that they produce are shown below.
ASCII Code Table The following table shows the ASCII codes before conversion and the hexa-
decimal values after conversion. Refer to Appendix H for a table of ASCII
characters.
Note The leftmost bit of each ASCII code is adjusted for parity.
Parity The leftmost bit of each ASCII character (2 digits) is automatically adjusted for
either even or odd parity.
With no parity, the leftmost bit should always be zero. With odd or even parity,
the leftmost bit of each ASCII character should be adjusted so that there is an
odd or even number of ON bits.
0
1
2
3
D
Di: 0011
S
Di: 0030
Di: 0133Di: 0023
1
st
byte
2
nd
byte
S
1
st
byte
2
nd
byte
S+1
1
st
byte
2
nd
byte
0
1
2
3
D
S
1
st
byte
2
nd
byte
S+1
1
st
byte
2
nd
byte
0
1
2
3
D
S
1
st
byte
2
nd
byte
S+1
1
st
byte
2
nd
byte
0
1
2
3
D
S+2
1
st
byte
2
nd
byte
Original data Converted data
ASCII Code Bit status (See note.) Digit Bits
30 * 01100000 0 0 00
31 * 01100011 0 0 01
32 * 01100102 0 0 10
33 * 01100113 0 0 11
34 * 01101004 0 1 00
35 * 01101015 0 1 01
36 * 01101106 0 1 10
37 * 01101117 0 1 11
38 * 01110008 1 0 00
39 * 01110019 1 0 01
41 * 1010001A 1 0 10
42 * 1010010B 1 0 11
43 * 1010011C 1 1 00
44 * 1010100D 1 1 01
45 * 1010101E 1 1 10
46 * 1010110F 1 1 11

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Omron CPM1 Specifications

General IconGeneral
ModelCPM1
ManufacturerOmron
Instruction SetBasic and advanced instructions
Power Supply100 to 240 VAC or 24 VDC
CommunicationRS-232C
I/O Points10, 20, 30, or 40 points depending on the model
TimersYes, multiple timers available
CountersYes, multiple counters available
Input Voltage24V DC
Output TypeRelay or transistor
Number of I/O Points10, 20, 30, 40
Communication PortsRS-232C (optional)
Operating Temperature0°C to 55°C
Storage Temperature-20°C
Humidity10% to 90% (non-condensing)
DimensionsVaries depending on the model
WeightVaries depending on the model
Program Memory2048 steps (2K steps)

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