PREO EASY 5 Series, Руководство по эксплуатации и обслуживанию

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Section 3 - INSTALLATION
15
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All rights reserved
EAW530E2MV
Edition
03/2006
1 st byte [0] header (always obligatorily zero)
2 nd byte [TANK] new tank set-point
3 rd byte [HOSE1] new hose 1 set-point
4 th byte [GUN1] new gun 1 set-point
5 th byte [HOSE2] new hose 2 set-point
6 th byte [GUN2] new gun 2 set-point
7 th byte [PUMP] new pump set-point
8 th byte [CHKSUM] check-sum bytes transmitted
The applicator responds with a further 8 bytes, arranged as follows:
1 st byte [0] header (always zero)
2 nd byte [tank] current tank temperature
3
rd
byte [hose1] current hose 1 temperature
4
th
byte [gun1] current gun 1 temperature
5
th
byte [hose2] current hose 2 temperature
6
th
byte [gun2] current gun 2 temperature
7
th
byte [pressure] current glue delivery pressure
8
th
byte [chksum] check-sum bytes received
Note that the set-points and current temperatures are expressed in °C and must be
within the field of +2°C to +230°C.
Setting one of the set-points to one (1) causes the corresponding channel to be
switched off. For example, by transmitting 1 as the 3
rd byte, the PC switches off
hose 1 completely. This is useful when you want to obtain machine consensus,
despite hose 1 being disconnected.
The parameters must NOT be set at zero, so as not to confuse them with the
header.
The check-sum (both in TX and RX) is calculated as follows: (2 nd byte + 3 rd byte +
4 th byte + 5 th byte + 6 th byte + 7 th byte) MOD 256. If the result amounts to zero
(header!), it is transformed to one.