TriContinent C24000, Product Manual

Page: 72 / 144

Execution control commands
72
Operating instructions
Mark start of a repeat sequence, or loop (g)
The [g] command is used in conjunction with the [G] command. The [g]
command marks the beginning of a repeat sequence (loop) that occurs
within program string (i.e., the entire string is not repeated). The [g] com-
mand can be used with the [G] command to nest up to 10 loops.
Example of loop nesting:
[A0gP50gP100D100G10G5R]
Breakdown:
Delay command execution (M<n>)
The [M] command delays execution of a command for <n> milliseconds. This
command is typically used to allow time for liquid in the syringe and tubing
to stop oscillating, thereby enhancing precision.
Arguments:
Halt command execution (H<n>)
The [H] command is used within a program string to halt execution of the
string and wait for a specified condition.
Arguments:
To resume execution, an [R] command or TTL signal must be sent. Two TTL
inputs are available: Input 1 (JP3 pin 7), and Input 2 (JP3 pin 8).
Note: Both inputs are pulled up to +5V.
The status of the TTL input lines can be read using [?13] and [?14]. The
response of the [H] command to the TTL inputs can be configured using the
EEPROM [u16] command. See details below.
A0 Move plunger to position 0
g Outer loop start
P50 Move plunger down 50 increments
g Inner loop start
P100 Move plunger down 100 increments
D100 Move plunger up 100 increments
G10 Go to inner loop start, repeat 10 times
G5 Go to outer loop start, repeat 5 times
R Execute command string
<n> 0...30000 milliseconds
(0) default argument
<n> 0...2 (see table below)
(0) default argument
<n> options Description
0 Halt and wait for [R] or low signal on either Input 1
or 2.
1 Halt and wait for [R] or low signal on Input 1.
2 Halt and wait for [R] or low signal on Input 2.