Statn - Station Parameters - Siemens Moore 353 User Manual

UM353-1

3.1.3 STATN - Station Parameters

The STATN function block enables entry of station
identification and other station related information.
When the station is networked using Modbus or the LIL
option board the address is used by higher level devices
to obtain information from the station. LIL addresses
range from 1-32 or 1-64 when a Model 321 Expansion
Satellite is used. Modbus can range from 1-250 but
normally 1-32 is used to correspond to the total number
of devices that can be installed on a single network.
Once the address has been assigned and higher level
devices have been configured to access information from
the station, changing the address can require
reconfiguration of the higher level device. There may
also be higher level devices that will query and assign
addressing information based on the station tag name. In
this case, a tag name change will also require
reconfiguration of higher level devices. Therefore, it is
important not to change the station identification without
being aware of system consequences.
There are two timers used during power up initialization:
WARM TIM and COLD TIM. The station takes
approximately 8 seconds to perform power up
initialization before the power up time is evaluated. A
timer should be set to a value greater than 8 seconds to
be effective. A timer setting of 0 will be considered as
infinite (e.g. to always power up hot, set the warm timer
to 0). When the station powers up after a loss of power
but prior to the expiration of the warm timer, the station will execute a Hot Start. If the station powers up after the
warm timer expiration but prior to the expiration of the cold timer, the station will execute a warm start. In all other
cases, the station will execute a cold start. The adjustable range of these timers is 0-18000 seconds for firmware
versions prior to than 1.30 and is 0-999999 seconds for versions 1.30 and higher. IMPORTANT: The Real Time
Clock jumper must be set for the warm and hot timers to function. See the Maintenance section for details on this
jumper.
When using Modbus Network communications, the WATCHDOG timer can be set to a value other than 0 to cause
a high WD output from the loop operator display function block when the station does not receive a computer
command within the timer period. A value of 0 disables the watchdog. A Modbus communications DELAY time
can entered for both the Display Assembly configuration port and LIL/Modbus terminals NCA/NCB (front and rear
ports respectively). This may be necessary when the station responds too quickly for the modem. Modbus masters
may handle IEEE floating point numbers in a different word order. The IEEE REV parameter allows matching the
station to the Modbus master in use.
The CONFG LO (Configuration Lockout) parameter (V2.40) - renamed from DWNLD LO in earlier versions - and
PARAM LO (Parameter Write Lockout) parameter provide a method for locking out configuration transfers and
parameter read/writes from a PC over a Modbus or LIL network. The parameter lockout does not affect the global
updates on the on the LIL.
The 8-digit SERIAL # of the station is stored in memory and can be viewed when this parameter is displayed. If
only seven digits are seen, assume a leading zero.
BAUD rate parameters set the Modbus port characteristics; see Table 3.2. The network Modbus port at terminals
NCA and NCB, the rear port, is RS485 and uses the assigned station address. The configuration port, the front port,
March 2003
STATION PARAMETERS
STATN
IDENTIFICATION TAG
TAG: UNIT NO. 3
ADDRESS: 24
12
STATION TIMERS
9
6
PC WRITE LOCKOUT
STATION PARAMETERS
T A
G
Station TAG .................. 12 Char ASCII (PAC 353)
(S)
A D D R E S S
Station ADDRESS
(H)
W A R M T I M
WARM TIMer (sec)
C O L D T I M
COLD TIMer (sec)
(S)
W A T C H D O G
WATCHDOG timer (sec)
C O N F G L O
CONFiGuration Lock Out
P A R A M L O
PARAMeter Lock Out
S E R I A L #
SERIAL # ...................... 0 to 99999999 (xxxxxxxx)
(R)
I E E E R E V
IEEE Floating Point REVerse
R P B A U D
Rear Port BAUD rate
R P D E L A Y
Rear Port DELAY
(S)
F P B A U D
Front Port BAUD rate
F P R T S
F P RTS/CTS
handshaking
F P D E L A Y
Front Port DELAY
(S)
H W P R E S
HardWare PRESent
C T B A S E
Cycle Time BASE
msec
C T B I A S
Cycle Time BIAS
msec
C M A V A I L
Constant Mem AVAILable
V M A V A I L
Volitile Mem AVAILable
B A T O K
..............................
BATtery OK
(R)
S E R V P I N
SERVice PIN ......
(S)
C O N F G T O
CONFiGuration Time Out
(1) - Changed function in 2.40 0-No Lock Out, 1-Read Only, 2-Write Only, 3-Total Lock Out
(2) - Available with Firmware version 1.30 or later
Function Blocks
3
.................... 0 - 250 (0)
............. 0 - 999999 (10)
(S)
.............. 0 - 999999 (100)
........ 0 - 1000 (0)
(S)
.......... 0/1/2/3 (0)
(S) (1)
............... 0/1/2/3 (0)
(S) (1)
. NO/YES (YES)
(S)
.......... (Table 3.2) (5)
(S)
.......... 0 - 1000 msec (0)
......... (Table 3.2) (6)
(S)
(Table 3.2) (1)
.......
(S)
......... 0 - 1000 msec (0)
.............(Table 3.3)
(R)
..........
(R) 20 to 2000
(0)
................ 0 to 1000
(H)
(R)..
bytes varies w/ software rev
...
(R)..
bytes varies w/ software rev
NO/YES
(press STORE to activate)
.........
NO/YES (YES)
(H) (2)
3-5