Omron TJ2-MC64 - PROGRAMMING Programming Manual page 213

Communication protocols
Parameter Values
var_type • 82 (TABLE memory in 16-bit integer format)
• C2 (TABLE memory in 32-bit IEEE floating-point format)
• B0 (VR memory in 16-bit integer format)
• F0 (VR memory in 32-bit IEEE floating-point format)
• 30 (VR memory in bit format)
start_address 0 <= start_address <= number of variables - 1 <= FFFF
total_words 1 <= total_words <= memory size - start_address + 1
total_bits 1
bit 00 or 01
The TJ2-MC64 responds with these codes:
/i
Condition Response code
(hex)
All elements valid 0000
Var_type invalid 1101
Start_address invalid 1103
Bit_number invalid 1103
Number of elements invalid 1104
(totals)
General Purpose Read command (2001)
The FINS General Purpose read command has this format:
/i
20 01 00 00
command_code parameter
The parameters can have the following values:
PROGRAMMING MANUAL
Description
OK
No area type
Address range designation error
Address range designation error
Address out of range
.. xx yy zz
var_ start_address element_count
type
/i
Parameter
command_code
parameter
var_type
start_address
element_count
/i
var_type (upper 4 bits)
Unsigned Integer 16 bits
Unsigned Integer 32 bits
Integer 16 bits
Integer 32 bits
Floating point 32 bits
Floating point 64 bits
/i
var_type (lower 4 bits)
Axis parameters
VR memory
TABLE memory
Example:
Read VR in 64 bit IEEE Floating point format: var_type = 0xE2
.. ..
When reading axis parameters (for the offsets see the table below):
• xx = axis number
• yy = axis parameter offset (Most significant byte)
• zz = axis parameter offset (Least significant byte)
When reading VR or TABLE:
Values (hex)
20 01
00 00
See table below
See definition below
1 <= element_count <= number of variables - start_address
Values (hex)
0
1
8
9
D
E
Values (hex)
1
2
3
207