1640-IN-026-A-00 Page 8 of 10
control relays, for a total count of 1,024. Status control relays
cannot be used in the RLD and are listed in the Control Relay
section of this manual.
The first sixteen (16) status control relays are always linked to
the first supported control relay command (see 3.1.1 - 3.1.9)
and the next sixteen are linked to the second control relay
command.
For an example look at an additive feeder assigned as device
one (1) on the setup screen. The process status and machine
mode definition is a follows:
4.0 STATUS AND STM/MTS CONTROL RELAYS
Status control relays are used to display messages on the
operator station, STM relays (CR# 3769 - 3832) and MTS
relays (CR# 3833 - 3896) are used in RLD.
4.1 Status control relays
Any control relay retrieved from the SPI equipment can be
used to display messages on the operator station, this is
known as a status control relay. Each of the 32 devices that
can be connected to the SPI interface can have 32 status
Process Status Modfile Definition Machine Mode Modfile Definition
bit 0 - processing Dev. 1 CR1 bit 0 - machine, ON/OFF Dev. 1 CR17
bit 1 - system alarm Dev. 1 CR2 bit 1 - alarm acknowledge Dev. 1 CR18
bit 2 - process alarm Dev. 1 CR3 bit 2 - reserved Dev. 1 CR19
bit 3 - machine alarm Dev. 1 CR4 bit 3 - reserved Dev. 1 CR20
bit 4 - reserved Dev. 1 CR5 bit 4 - reserved Dev. 1 CR21
bit 5 - reserved Dev. 1 CR6 bit 5 - reserved Dev. 1 CR22
bit 6 - reserved Dev. 1 CR7 bit 6 - reserved Dev. 1 CR23
bit 7 - reserved Dev. 1 CR8 bit 7 - reserved Dev. 1 CR24
bit 8 - reserved Dev. 1 CR9 bit 8 - reserved Dev. 1 CR25
bit 9 - reserved Dev. 1 CR10 bit 9 - reserved Dev. 1 CR26
bit 10 - augur jam alarm Dev. 1 CR11 bit 10 - reserved Dev. 1 CR27
bit 11 - low material alarm Dev. 1 CR12 bit 11 - reserved Dev. 1 CR28
bit 12 - reserved Dev. 1 CR13 bit 12 - reserved Dev. 1 CR29
bit 13 - reserved Dev. 1 CR14 bit 13 - reserved Dev. 1 CR30
bit 14 - open Dev. 1 CR15 bit 14 - reserved Dev. 1 CR31
bit 15 - open Dev. 1 CR16 bit 15 - reserved Dev. 1 CR32
Table 1 Process Status and Machine Node with a additive feeder as Dev. 1
For an example look at a chiller assigned as device four (4) on the setup screen. The process status and machine mode
definition is a follows:
Process Status Modfile Definition Machine Mode Modfile Definition
bit 0 - processing Dev. 4 CR1 bit 0 - machine, ON/OFF Dev. 1 CR17
bit 1 - system alarm Dev. 4 CR2 bit 1 - alarm acknowledge Dev. 4 CR18
bit 2 - process alarm Dev. 4 CR3 bit 2 - reserved Dev. 4 CR19
bit 3 - machine alarm Dev. 4 CR4 bit 3 - reserved Dev. 4 CR20
bit 4 - high temp. alarm Dev. 4 CR5 bit 4 - reserved Dev. 4 CR21
bit 5 - low temp. alarm Dev. 4 CR6 bit 5 - reserved Dev. 4 CR22
bit 6 - high pressure alarm Dev. 4 CR7 bit 6 - reserved Dev. 4 CR23
bit 7 - low pressure alarm Dev. 4 CR8 bit 7 - reserved Dev. 4 CR24
bit 8 - reserved Dev. 4 CR9 bit 8 - reserved Dev. 4 CR25
bit 9 - low flow alarm Dev. 4 CR10 bit 9 - reserved Dev. 4 CR26
bit 10 - reserved Dev. 4 CR11 bit 10 - reserved Dev. 4 CR27
bit 11 - reserved Dev. 4 CR12 bit 11 - reserved Dev. 4 CR28
bit 12 - reserved Dev. 4 CR13 bit 12 - reserved Dev. 4 CR29
bit 13 - reserved Dev. 4 CR14 bit 13 - reserved Dev. 4 CR30
bit 14 - open Dev. 4 CR15 bit 14 - reserved Dev. 4 CR31
bit 15 - open Dev. 4 CR16 bit 15 - reserved Dev. 4 CR32
Table 2 Process Status and Machine Node with a chiller as Dev. 4
If you were interested in placing the status of the system alarm
(table 1) from the process status on the operator station, you
would use Dev. 1 CR #2 from the SPI modfile. If you wanted
to know the status of the machine on/off bit (table 1), you
would use Dev. 1 CR #17.
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