Graseby 3000/500, Manual

Page: 210 / 231

Graseby Medical L t d Volumetric Infusion Pumps
12 - 12 Issue 1(April 2002) 3000/3100 and 500/505 Service Manual
The pump will also respond to the following “CI” or interface/control
commands:
CI (Interface)
Command Code Name Parameter Needed
B Silence Key Keypress
C Infused Volume Clear
E Time and Date Set
ü
F Pump On or Off.
ü
K Keypad Lockout Setup
ü
L VTBI Set
ü
N Open Top Valve
ü
O Run Mode Enter (Begin pumping).
P Occlusion Pressure Set (2,5, or 10 psi).
ü
R Rate Value Set
ü
S Hold Mode Enter (Stop pumping).
T Titrate (Rate change while pumping). ü
X User LCD Text Setup ü
Command Parameters
Any characters following the command code and preceding the CRC
characters are parameters specific to the command code. There may be
a minimum of zero and a maximum of 17 parameter characters.
Responses from the pump are described in Table 1 and the section
entitled 'Return Record Format'. When the pump receives a CI
command that requires a parameter, and that parameter is out of
range or missing, the pump will indicate ‘invalid parameter’ in the
‘return code field.’
CRC
Immediately following the parameter area (if any), a four character
CRC is given. The CRC is calculated as a 16-bit value and includes the
record header through the parameter characters. The record
terminator, ">", and CRC characters are not included in the CRC.
When the pump receives a message where the CRC field does not
match calculated message CRC, the pump will indicate ‘Invalid CRC
Field’ in the ‘return code field.’
The CRC table and algorithm used are shown below in a 'C' code
example:
unsigned int crctable[256] =
{
0x0000, 0x1189, 0x2312, 0x329B, 0x4624, 0x57AD, 0x6536, 0x74BF,
0x8C48, 0x9DC1, 0xAF5A, 0xBED3, 0xCA6C, 0xDBE5, 0xE97E, 0xF8F7,
0x0919, 0x1890, 0x2A0B, 0x3B82, 0x4F3D, 0x5EB4, 0x6C2F, 0x7DA6,
0x8551, 0x94D8, 0xA643, 0xB7CA, 0xC375, 0xD2FC, 0xE067, 0xF1EE,
0x1232, 0x03BB, 0x3120, 0x20A9, 0x5416, 0x459F, 0x7704, 0x668D,