44
JUMP END instruction with a jump number of 00. Although, as in all jumps,
no status is changed and no instructions are executed between the JUMP 00
and JUMP END 00 instructions, the program must search for the next JUMP
END 00 instruction, producing a slightly longer execution time.
Execution of programs containing multiple JUMP 00 instructions for one
JUMP END 00 instruction resembles that of similar interlocked sections. The
following diagram is the same as that used for the interlock example above,
except redrawn with jumps. This diagram, however, would not execute the
same, as has already be described, i.e., interlocks would reset certain parts
of the interlocked section but jumps would not affect any status between the
JUMP and JUMP END instructions.
Instruction 1
0000
Instruction 2
0001
JME(05) 00
JMP(04) 00
0004
Instruction 3
Instruction 4
0006
0005
0003
0002
JMP(04) 00
Address
Instruction
Operands
0000
LD
0000
0001
JMP(04)
00
0002
LD
0001
0003
Instruction 1
0004
LD
0002
0005
JMP(04)
00
0006
LD
0003
0007
AND NOT
0004
0008
Instruction 2
0009
LD
0005
0010
Instruction 3
0011
LD
0006
0012
Instruction 4
0013
JME(05)
00
Jump diagrams can also be drawn as branching instruction lines if desired
and would look exactly like their interlock equivalents. The non-branching
form, which is the form displayed on the GPC, will be used in this manual.
4-4
The Programming Console
Depending on the model of Programming Console used, it is either con-
nected to the CPU via a Programming Console Adapter and Connecting Ca-
ble or it is mounted directly to the CPU.
4-4-1
The Keyboard
The keyboard of the Programming Console is functionally divided by key
color into the following four areas:
The ten white keys are used to input numeric program data such as program
addresses, data area addresses, and operand values. The numeric keys are
also used in combination with the function key (FUN) to enter instructions
with function codes.
The CLR key clears the display and cancels current Programming Console
operations. It is also used when you key in the password at the beginning of
programming operations. Any Programming Console operation can be can-
celled by pressing the CLR key, although the CLR key may have to be
pressed two or three times to cancel the operation and clear the display.
The yellow keys are used for writing and correcting programs. Detailed ex-
planations of their functions are given later in this section.
White Numeric Keys
Red CLR Key
Yellow Operation Keys
The Programming Console
Section 4-4
Summary of Contents for SYSMAC C20K
Page 1: ...Cat No W146 E1 5 Programmable Controllers SYSMAC C20K C28K C40K C60K ...
Page 2: ...K type Programmable Controllers OPERATION MANUAL Revised July 1999 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 19: ...7 SECTION 2 Hardware Considerations 2 1 Introduction 2 2 Indicators 2 3 PC Configuration ...