8.2
Slave telegram
The structure of the slave telegram is.
...4
5
6
...
12
13+14
...
Identification
Message
Checksum
Byte 5:
Identification: 41h (‚A‘) is supported.
Byte 6:
Status device
Bit 0
1: power supply failure during operation
(e.g. heating current alarm)
Bit 1, 2 (fixed) 0 0
Bit 3
1: other internal error, e.g.
E.1
,
E.2
...
Bit 4, 5, 6, 7: (fixed) 0 1 1 0
Byte 7-10:
Channel 1
•
Process value with command for closed-loop control: (=
In.1
) in 0,1
degrees Celsius
(3 digits before, 1 digit behind the decimal point); negative
temperatures up to –99 degrees Celsius are possible (1st byte = 2Dh)
•
Output variable with command for positioning: in % (=
Ypid
)
(3 digits before, 1 digit behind the decimal point)
Byte 11:
Channel 1 : status alarms 1
Bit 0
1: switched on (
C.Off
= 0)
Bit 1
1: lowering on (with
SP.2
= 1)
Bit 2
0: closed-loop control (automatic),
1: positioning (manual mode)
Bit 3
(fixed) 0
Bit 4, 5, 6, 7 : (fixed) 0 1 1 0
Byte 12:
Channel 1 : status alarms 2
Bit 0
1: lead break, e.g.:
LooP
= 1
Bit 1
1: only undercurrent, e.g.
HCA
= 1
Bit 2
1: sensor defective, e.g.
FbF.1
,
Sht.1
,
POL.1
Bit 3
0
Bit 4, 5, 6, 7 : (fixed) 0 1 1 0
Byte 13-14:
Checksum
Protocol for hot-runner systems
Operating note KS 50-1
TCont
21
Slave telegram
